colortranslator
Advanced tools
A JavaScript library, written in TypeScript, to convert among different color models
A JavaScript library, written in TypeScript, to convert among different color models
https://elchininet.github.io/ColorTranslator/
npm install colortranslator
yarn add colortranslator
It is possible to include a compiled version of the package directly in an HTML file. It will create a global colortranslator object containing all the exported modules that can be accessed from anywhere in your JavaScript code.
colortranslator.js, located in the dist/web/ folder<script src="wherever/you/installed/colortranslator.js"></script>
/* There will be a global variable named colortranslator containing all the modules */
colortranslator.ColorTranslator;
colortranslator.Harmony;
colortranslator.Mix;
const { ColorTranslator, Harmony, Mix } = require('colortranslator');
import { ColorTranslator, Harmony, Mix } from 'colortranslator';
npm run build
Transpiles the TypeScript code and creates three bundles in the dist folder (index.js for commonjs, esm/index.js for ESM, and web/colortranslator.js to use directly in the browser).
npm run test
Runs multiple dynamic tests converting from / to all the color models available (excepting CMYK) using a table of colors.
npm run lint
Runs eslint in source files.
npm run demo
Opens a development server that provides live reloading using webpack-dev-server. Some demo examples located in the @demo folder will be shown. You can modify the code of the demos and the changes will be live reloaded in the browser.
Notes:
- The conversion to a CMYK color is made taking a random value of black as a base (in this case, taking the greater value from red, green or blue). When a value of black is assumed, the rest of the colors can be calculated from it. The result will be visually similar to the original light color, but if you try to convert it back you will not obtain the same original value.
- The conversion to a CIE L*a*b color may introduce a small amount of rounding error, as far as you maintain enough decimals for the calculation it should not be noticeable, but you can expect that the values change some of their decimals during the conversions.
The most wonderful thing about colortranslator is that you don‘t need to specify the input that you are using, the library will recognise it automatically. The input can be a CSS string or an object:
| Example of CSS string inputs | Description |
|---|---|
fuchsia | Color keyword |
#FF00FF | Hexadecimal color |
#F0F | Shorthand hexadecimal color |
#FF00FF80 | Hexadecimal color with alpha |
#F0FF | Shorthand hexadecimal color with alpha |
rgb(255 0 255) | Functional RGB notation |
rgb(100% 0% 100%) | Functional RGB notation with values in percentages |
rgb(255 0 255 / 0.5) | Functional RGB notation with alpha |
rgb(255 0 255 / 50%) | Functional RGB notation CSS with alpha in percenatages |
rgb(100% 0% 100% / 0.5) | Functional RGB notation with values in percentages and alpha |
rgb(100% 0% 100% / 50%) | Functional RGB notation with values and alpha in percentages |
rgb(255, 0, 255) | Functional RGB notation (CSS Colors 3 comma-separated) |
rgba(255, 0, 255, 0.5) | Functional RGB notation with alpha (CSS Colors 3 comma-separated) |
hsl(300 100% 50%) | Functional HSL notation |
hsl(300deg 100% 50%) | Functional HSL notation with hue in degrees |
hsl(270grad 100% 50%) | Functional HSL notation with hue in gradians |
hsl(5.24rad 100% 50%) | Functional HSL notation with hue in radians |
hsl(0.83turn 100% 50%) | Functional HSL notation with hue in turns |
hsl(300 100% 50% / 0.5) | Functional HSL notation with alpha |
hsl(300 100% 50% / 50%) | Functional HSL notation with alpha in percentages |
hsl(300, 100%, 50%) | Functional HSL notation (Colors 3 comma-separated) |
hsl(300deg, 100%, 50%) | Functional HSL notation with hue in degrees (CSS Colors 3 comma-separated) |
hsl(270grad, 100%, 50%) | Functional HSL notation with hue in gradians (CSS Colors 3 comma-separated) |
hsl(5.24rad, 100%, 50%) | Functional HSL notation with hue in radians (CSS Colors 3 comma-separated) |
hsl(0.83turn, 100%, 50%) | Functional HSL notation with hue in turns (CSS Colors 3 comma-separated) |
hsla(300, 100%, 50%, 0.5) | Functional HSL notation with alpha (CSS Colors 3 comma-separated) |
lab(54 81 70) | Functional LAB notation with numbers |
lab(54 81 70 / 1) | Functional LAB notation with numbers and alpha |
lab(54% 65% 56%) | Functional LAB notation with percentages |
lab(54% 65% 56% / 1) | Functional LAB notation with percentages and alpha |
lab(54 81 70 / 93%) | Functional LAB notation with numbers and alpha in percentages |
lab(54% 65% 56% / 93%) | Functional LAB notation with parcentages and alpha in percentages |
device-cmyk(0% 100% 100% 0%) | Device-dependent functional CMYK notation with percentages |
device-cmyk(0% 100% 100% 0% / 1) | Device-dependent functional CMYK notation with percentages and alpha |
device-cmyk(0% 100% 100% 0% / 100%) | Device-dependent functional CMYK notation with percentages and alpha in percentages |
device-cmyk(0%, 100%, 100%, 0%) | Device-dependent functional CMYK notation with percentages (CSS Colors 3 comma-separated) |
device-cmyk(0%, 100%, 100%, 0%, 1) | Device-dependent functional CMYK notation with percentages and alpha (CSS Colors 3 comma-separated) |
device-cmyk(0 1 1 0) | Device-dependent functional CMYK notation with numbers |
device-cmyk(0 1 1 0 / 1) | Device-dependent functional CMYK notation with numbers and alpha |
device-cmyk(0 1 1 0 / 100%) | Device-dependent functional CMYK notation with numbers and alpha in percentages |
device-cmyk(0, 1, 1, 0) | Device-dependent functional CMYK notation with numbers (CSS Colors 3 comma-separated) |
device-cmyk(0, 1, 1, 0, 1) | Device-dependent functional CMYK notation with numbers and alpha (CSS Colors 3 comma-separated) |
cmyk(0% 100% 100% 0%) | Functional CMYK notation with percentages |
cmyk(0% 100% 100% 0% / 1) | Functional CMYK notation with percentages and alpha |
cmyk(0% 100% 100% 0% / 100%) | Functional CMYK notation with percentages and alpha in percentages |
cmyk(0 1 1 0) | Functional CMYK notation with numbers |
cmyk(0 1 1 0 / 1) | Functional CMYK notation with numbers and alpha |
cmyk(0 1 1 0 / 100%) | Functional CMYK notation with numbers and alpha in percentages |
cmyk(0%, 100%, 100%, 0%) | Functional CMYK notation with percentages (CSS Colors 3 comma-separated) |
cmyk(0%, 100%, 100%, 0%, 1) | Functional CMYK notation with percentages and alpha (CSS Colors 3 comma-separated) |
cmyk(0, 1, 1, 0) | Functional CMYK notation with numbers (CSS Colors 3 comma-separated) |
cmyk(0, 1, 1, 0, 1) | Functional CMYK notation with numbers and alpha (CSS Colors 3 comma-separated) |
| Example of object inputs | Description |
|---|---|
{R: "0xFF", G: "0x00", B: "0xFF"} | Hexadecimal color |
{R: "0xF", G: "0x0", B: "0xF"} | Shorthand hexadecimal color |
{R: "0xFF", G: "0x00", B: "0xFF", A: "0x80"} | Hexadecimal color with alpha |
{R: "0xF", G: "0x0", G: "0xF", G: "0xF"} | Shorthand hexadecimal color with alpha |
{R: 255, G: 0, B: 255} | RGB notation |
{R: 255, G: 0, G: 255, A: 0.5} | RGB notation with alpha |
{H: 300, S: "100%", L: "50%"} | HSL notation using percentages |
{H: 300, S: 100, L: 50} | HSL notation using numbers |
{H: 300, S: "100%", L: "50%", A: 0.5} | HSL notation with alpha using percentages |
{H: 300, S: 100, L: 50, A: 0.5} | HSL notation with alpha using numbers |
{L: 54, a: 81, b: 70} | LAB notation using numbers |
{L: 54, a: 81, b: 70, A: 1} | LAB notation using numbers with alpha |
{L: '54%', a: '65%', b: '56%'} | LAB notation using percentages |
{L: '54%', a: '65%', b: '56%', A: '100%'} | LAB notation using percentages with alpha |
{C: "0%", M: "100%", Y: "100%", K: "0%"} | CMYK notation using percentages |
{C: 0, M: 1, Y: 1, K: 0} | CMYK notation using numbers |
ColorTranslator(color: ColorInput, options?: Options)
It is possible to instantiate the class using any of the previous inputs.
interface Options {
decimals?: number; // defaults to 6
legacyCSS?: boolean; // defaults to false
spacesAfterCommas?: boolean; // defaults to false
anglesUnit?: 'none' | 'deg' | 'grad' | 'rad' | 'turn'; // defaults to 'none'
rgbUnit?: 'none' | 'percent'; // defaults to 'none'
labUnit?: 'none' | 'percent'; // defaults to 'none'
cmykUnit?: 'none' | 'percent'; // defaults to 'percent'
alphaUnit?: 'none' | 'percent'; // defaults to 'none'
cmykFunction?: 'device-cmyk' | 'cmyk'; // defaults to 'device-cmyk'
}
| Option | Only for CSS output | Description |
|---|---|---|
| decimals | no | This option sets what is the maximum number of decimals for the outputs |
| legacyCSS | yes | This option decides if the CSS output should be CSS Level 3 (legacy) or CSS Level 4 |
| spacesAfterCommas | yes | This option only takes place if legacyCSS is set to true. It decides if the comas should have a space after |
| anglesUnit | yes | This option only takes place if the output is an HSL CSS output. It sets the degrees units of the HSL hue angle. If none is used, the output will not have any unit but its value will be the deg one (degrees) |
| rgbUnit | yes | This option only takes place if the output is an RGB CSS output. It sets the color units of the RGB and RGBA CSS outputs. If none is used the color values will be decimal between 0 and 255. If percent is used, the color values will be decimal with percentages between 0% and 100%. |
| labUnit | yes | This option only takes place if the output is a CIE L*a*b CSS output. It sets the color units of the CIELab and CIELabA CSS outputs. If none is used it will be a decimal number between 0 and 100 for the CIE Lightness and a decimal number between -125 and 125 for the a and b axis of the CIE L*a*b colorspace. If percent is used, it will be a decimal number between 0 and 100 with percentages for all the color values. |
| cmykUnit | yes | This option sets the color units of the CMYK and CMYKA CSS outputs. If none is used the color values will be decimal between 0 and 1. If percent is used, the color values will be decimal with percentages between 0% and 100%. |
| alphaUnit | yes | This option only takes place if the output is a CSS Level 4 output (legacyCSS has not been set, or it has been set to false or it has been autodetected as false). This option sets the alpha units of the CSS Level 4 outputs. If none is used the alpha values will be decimal between 0 and 1. If percent is used, the alpha values will be decimal with percentages between 0% and 100%. |
| cmykFunction | yes | This option sets the cmyk function of the CMYK and CMYKA CSS outputs. |
Note: the library tries to detect some options automatically if you don‘t send them in the options object. These are the rules for this autodetection:
legacyCSS: if this option is set, then its value prevails, if it is not set, and the CSS input is provided in CSS Level 3, then this option will betrue, otherwise it will take its default value which isfalse.spacesAfterCommas: if this option is set, then its value prevails, if it is not set, and the CSS input is provided with spaces after the commas, then this option will betrue. If the input is not consistent in this aspect, then it will take its default value which isfalse(This option only takes place iflegacyCSSistrueor it has been autodetected astrue)anglesUnit: if this option is set, then its value prevails, if it is not set, and the HSL CSS input is provided with an angle unit, then it will take that value, otherwise it will use the default one wich isnone.rgbUnit: if this option is set, then its value prevails, if it is not set, and the RGB CSS input is provided with percentages in its color values, then it will take thepercentvalue, otherwise it will use the default one wich isnone.labUnit: if this option is set, then its value prevails, if it is not set, and the CIE L*a*b CSS input is provided with percentages in its color values, then it will take thepercentvalue, otherwise it will use the default one wich isnone.cmykUnit: if this option is set, then its value prevails, if it is not set, and the CMYK CSS input is provided without percentages in its color values, then it will take thenonevalue, otherwise it will use the default one wich ispercent.alphaUnit: if this option is set, then its value prevails, if it is not set, and the CSS input (must be CSS Level 4) is provided with percentages in its alpha value, then it will take thepercentvalue, otherwise it will use the default one wich isnone.cmykFunction: if this option is set, then its value prevails, if it is not set, and the CMYK CSS input is provided using thecmykfunction, then it will take thecmykvalue, otherwise it will use the default one wich isdevice-cmyk.
const keyword = new ColorTranslator('deeppink');
const hex = new ColorTranslator('#FF00FF');
const rgb = new ColorTranslator('rgb(255, 0, 0)');
const hsl = new ColorTranslator('hsl(50 20% 90% / 0.5)');
const lab = new ColorTranslator('lab(54 81 70)');
const hsla = new ColorTranslator({ R: 115, G: 200, B: 150, A: 0.5 });
const cmyk = new ColorTranslator({ C: 100, M: 100, Y: 0, K: 0 });
// Decimals
new ColorTranslator('#F43227').HSL; // hsl(3.219512 90.30837% 55.490196%)
new ColorTranslator('#F43227', { decimals: 4 }).HSL; // hsl(3.2195 90.3084% 55.4902%)
new ColorTranslator('#F43227', { decimals: 0 }).HSL; // hsl(3 90% 55%)
new ColorTranslator('#F43227', { decimals: 2 }).HSLObject; // {H: 3.22, S: 90.31, L: 55.49}
// legacyCSS
new ColorTranslator('#FFF').RGBA; // rgb(255 255 255 / 1)
new ColorTranslator('#FFF', { legacyCSS: false }).RGBA; // rgb(255 255 255 / 1)
new ColorTranslator('#FFF', { legacyCSS: true }).RGBA; // rgba(255,255,255,1)
new ColorTranslator('hsla(100,30%,20%,0.5)').RGBA; // rgba(45.9,66.3,35.7,0.5)
new ColorTranslator('hsl(100 30% 20% / 0.5)').RGBA; // rgb(45.9 66.3 35.7 / 0.5)
// spacesAfterCommas
new ColorTranslator('#F00', { legacyCSS: true }).RGB; // rgb(255,0,0)
new ColorTranslator('#F00', { legacyCSS: true, spacesAfterCommas: true }).RGB; // rgb(255, 0, 0)
new ColorTranslator('hsla(100,30%,20%,0.25)').RGB; // rgb(45.9,66.3,35.7)
new ColorTranslator('hsl(100, 30%, 20%, 0.25)').RGB; // rgb(45.9, 66.3, 35.7)
// anglesUnit
new ColorTranslator('#0F0').HSL; // hsl(120 100% 50%)
new ColorTranslator('#0F0', { anglesUnit: 'none' }).HSL; // hsl(120 100% 50%)
new ColorTranslator('#0F0', { anglesUnit: 'deg' }).HSL; // hsl(120deg 100% 50%)
new ColorTranslator('#0F0', { anglesUnit: 'grad' }).HSL; // hsl(133.333333grad 100% 50%)
new ColorTranslator('#0F0', { anglesUnit: 'rad' }).HSL; // hsl(2.094395rad 100% 50%)
new ColorTranslator('#0F0', { anglesUnit: 'turn' }).HSL; // hsl(0.333333turn 100% 50%)
new ColorTranslator('hsl(0.5turn 100% 50% / 0.5)').HSL; // hsl(0.5turn 100% 50%)
// rgbUnit
new ColorTranslator('#0F0').RGB; // rgb(0 255 0)
new ColorTranslator('#0F0', { rgbUnit: 'none' }).RGB; // rgb(0 255 0)
new ColorTranslator('#0F0', { rgbUnit: 'percent' }).RGB; // rgb(0% 100% 0%)
new ColorTranslator('rgb(255 255 51 / 0.5)').RGB; // rgb(255 255 51)
new ColorTranslator('rgb(20% 100% 0% / 0.5)').RGB; // rgb(20% 100% 0%)
// labUnit
new ColorTranslator('#0F0').CIELab; // lab(87.818128 -79.287281 80.990256)
new ColorTranslator('#0F0', { labUnit: 'none' }).CIELab; // lab(87.818128 -79.287281 80.990256)
new ColorTranslator('#0F0', { labUnit: 'percent' }).CIELab; // lab(87.818128% -63.429825% 64.792205%)
new ColorTranslator('lab(88 -79 81)').CIELabA; // lab(87.863151 -78.89437 80.892902 / 1)
new ColorTranslator('lab(54.291734% 64.649964% 55.908032% / 1)').CIELabA; // lab(54.291736% 64.649953% 55.90801% / 1)
// cmykUnit
new ColorTranslator('#0F0').CMYK; // device-cmyk(100% 0% 100% 0%)
new ColorTranslator('#0F0', { cmykUnit: 'percent' }).CMYK; // device-cmyk(100% 0% 100% 0%)
new ColorTranslator('#0F0', { cmykUnit: 'none' }).CMYK; // device-cmyk(1 0 1 0)
// alphaUnit
new ColorTranslator('#0F0').RGBA; // rgb(0 255 0 / 1)
new ColorTranslator('#0F0', { alphaUnit: 'none' }).RGBA; // rgb(0 255 0 / 1)
new ColorTranslator('#0F0', { alphaUnit: 'percent' }).HSLA; // hsl(120 100% 50% / 100%)
new ColorTranslator('hsl(100 50% 20% / 0.25)').RGBA; // rgb(42.5 76.5 25.5 / 0.25)
new ColorTranslator('rgb(0 0 0 / 50%)').HSLA; // hsl(0 0% 0% / 50%)
// cmykFunction
new ColorTranslator('#00F').CMYKA; // device-cmyk(100% 100% 0% 0% / 1)
new ColorTranslator('#00F', { cmykFunction: 'device-cmyk' }).CMYK; // device-cmyk(100% 100% 0% 0%)
new ColorTranslator('#00F', { cmykFunction: 'cmyk' }).CMYKA; // cmyk(100% 100% 0% 0% / 1)
There are 15 chainable public methods and 14 of them accept a number as input. The last one accepts an options object:
| Public methods | Input | Description |
|---|---|---|
| setH | 0 ≤ input ≤ 360 | Sets the color hue |
| setS | 0 ≤ input ≤ 100 | Sets the color saturation percentage |
| setL | 0 ≤ input ≤ 100 | Sets the color lightness percentage |
| setR | 0 ≤ input ≤ 255 | Sets the red value of the color |
| setG | 0 ≤ input ≤ 255 | Sets the green value of the color |
| setB | 0 ≤ input ≤ 255 | Sets the blue value of the color |
| setC | 0 ≤ input ≤ 100 | Sets the CMYK cyan percentage value of the color |
| setM | 0 ≤ input ≤ 100 | Sets the CMYK magenta percentage value of the color |
| setY | 0 ≤ input ≤ 100 | Sets the CMYK yellow percentage value of the color |
| setK | 0 ≤ input ≤ 100 | Sets the CMYK black percentage value of the color |
| setCIEL | 0 ≤ input ≤ 100 | Sets the CIE Lightness value of the color |
| setCIEa | -125 ≤ input ≤ 125 | Sets the a axis in the CIE L*a*b colorspace |
| setCIEb | -125 ≤ input ≤ 125 | Sets the b axis in the CIE L*a*b colorspace |
| setA | 0 ≤ input ≤ 1 | Sets the alpha value of the color |
| setOptions | Options | Sets an object that would work as configuration options |
You can also consult the demo 1 and the demo 2 to check the use of the public methods.
const color = new ColorTranslator('#FF00FF');
color
.setH(120)
.setS(80)
.setA(0.5);
color
.setR(255)
.setG(150)
.setA(0.25);
There are 10 properties to get the CSS representation of the color:
| Property | Description |
|---|---|
| HEX | Gets the css hex representation of the color |
| HEXA | Gets the css hex representation of the color with alpha |
| RGB | Gets the css rgb representation of the color |
| RGBA | Gets the css rgb representation of the color with alpha |
| HSL | Gets the css hsl representation of the color |
| HSLA | Gets the css hsl representation of the color with alpha |
| CIELab | Gets the css CIE L*a*b representation of the color |
| CIELabA | Gets the css CIE L*a*b representation of the color with alpha |
| CMYK | Gets css cmyk representation of the color |
| CMYKA | Gets css cmyk representation of the color with alpha |
There are 10 properties to get the object representation of the color:
| Property | Description |
|---|---|
| HEXObject | Gets the object hex representation of the color |
| HEXAObject | Gets the object hex representation of the color with alpha |
| RGBObject | Gets the object rgb representation of the color |
| RGBAObject | Gets the object rgb representation of the color with alpha |
| HSLObject | Gets the object hsl representation of the color |
| HSLAObject | Gets the object hsl representation of the color with alpha |
| CIELabObject | Gets the object CIE L*a*b representation of the color |
| CIELabAObject | Gets the object CIE L*a*b representation of the color with alpha |
| CMYKObject | Gets the object cmyk representation of the color |
| CMYKAObject | Gets the object cmyk representation of the color with alpha |
There are 14 properties to get the individual color values:
| Property | Description |
|---|---|
| H | Gets the color hue |
| S | Gets the color saturation percentage |
| L | Gets the color lightness percentage |
| R | Gets the red value of the color |
| G | Gets the green value of the color |
| B | Gets the blue value of the color |
| CIEL | Gets the CIE Lightness value of the color |
| CIEa | Gets the a axis in the CIE L*a*b colorspace of the color |
| CIEb | Gets the b axis in the CIE L*a*b colorspace of the color |
| C | Gets the CMYK cyan percentage value of the color |
| M | Gets the CMYK magenta percentage value of the color |
| Y | Gets the CMYK yellow percentage value of the color |
| K | Gets the CMYK black percentage value of the color |
| A | Gets the alpha value of the color |
And a property to get the options object that acts as a configuration object for the outputs
| Property | Description |
|---|---|
| options | Get the configuration object value |
You can also consult the demo 1 and the demo 2 to check the use of the public properties.
const color = new ColorTranslator('#FF00FF', { decimals: 2 });
color.R; // 255
color.G; // 0
color.B; // 255
color.RGB; // rgb(255 0 255)
color.HSLA; // hsl(300 100% 50% / 1)
color.CIELabObject; // {L: 60.17, a: 93.55, b: -60.5}
color.options; // { decimals: 2 }
For the static methods, it is not needed to specify the input color model, the API will detect the format automatically. It is only needed to specify to which color model one wants to convert calling the specific static method.
There are 56 static methods available, 20 of them to convert colors, 16 to create color blends, 16 to mix colors, one to get shades, one to get tints, and one to create color harmonies.
Note: The static methods also count with the options-autodetection feature that was explained in the options object section, but in this case it scans all the inputs that are CSS, and it tries to detect the options in each one of them. If one of the autodetected options is consistent in all the inputs, then it takes the autodetected value, otherwise it will use the default one.
The static methods to convert colors accept any of the mentioned inputs as the first parameter, the second parameter is optional and it is an options object (this second option is not present in the methods to generate HEX colors):
convertColorStaticMethod(
color: string | object,
options?: Options
)
| Static method | Description |
|---|---|
| toHEX | Converts to an hexadecimal notation |
| toHEXObject | Converts to an object in hexadecimal notation |
| toHEXA | Converts to an hexadecimal notation with alpha |
| toHEXAObject | Converts to an object in hexadecimal notation with alpha |
| toRGB | Converts to an RGB notation |
| toRGBObject | Converts to an object in RGB notation |
| toRGBA | Converts to an RGB notation with alpha |
| toRGBAObject | Converts to an object in RGB notation with alpha |
| toHSL | Converts to an HSL notation |
| toHSLObject | Converts to an object in HSL notation |
| toHSLA | Converts to an HSL notation with alpha |
| toHSLAObject | Converts to an object in HSL notation with alpha |
| toCIELab | Converts to a CIE L*a*b notation |
| toCIELabObject | Converts to an object in the CIE L*a*b notation |
| toCIELabA | Converts to a CIE L*a*b notation with alpha |
| toCIELabAObject | Converts to an object in the CIE L*a*b notation with alpha |
| toCMYK | Converts to a CMYK notation |
| toCMYKA | Converts to a CMYK notation with alpha |
| toCMYKObject | Converts to an object in CMYK notation |
| toCMYKAObject | Converts to an object in CMYK notation with alpha |
ColorTranslator.toHEX('gold'); // #FFD700
ColorTranslator.toRGB('#FF00FF'); // rgb(255 0 255)
ColorTranslator.toRGBA(
'hsl(50, 20%, 90%)',
{ decimals: 0 }
); // rgba(235,233,224,1)
ColorTranslator.toHSL('rgb(255 0 0)'); // hsl(0 100% 50%)
ColorTranslator.toHSLA('rgba(0, 255, 255, 0.5)'); // hsla(180,100%,50%,0.5)
ColorTranslator.toCMYKObject('#F0F'); // {C: 0, M: 100, Y: 0, K: 0}
ColorTranslator.toCMYK('#F0F'); // cmyk(0% 100% 0% 0%)
ColorTranslator.toRGB(
{ h: 115, s: '70%', l: '45%' },
{ decimals: 0 }
); // rgb(48 195 34)
ColorTranslator.toHSLA(
{ r: 115, g: 200, b: 150, a: 0.5 },
{ decimals: 1 }
); // hsl(144.7 43.6% 61.8% / 0.5)
ColorTranslator.toHSLA(
{ r: 95, g: 23, b: 12, a: Math.SQRT1_2 },
{ decimals: 4 }
); // hsl(7.9518 77.5701% 20.9804% / 0.7071)
ColorTranslator.toCIELab(
'#00F',
{ decimals: 2 }
); // lab(29.57 68.3 -112.03)
You can also consult the demo 3, the demo 4 and the demo 5 to check the use of these static methods.
The static methods to create color blends accept any of the mentioned inputs as the first and second parameter, the third parameter is optional and it is the number of steps of the blending. And the fourth parameter is also optional and it is an options object (this fourth option is not present in the methods to generate HEX colors):
// If steps is not sent, the default will be 5
getBlendColorsStaticMethod(
fromColor: string | object,
toColor: string | object,
options?: Options
)
// Specifying the number of steps
getBlendColorsStaticMethod(
fromColor: string | object,
toColor: string | object,
steps: number,
options?: Options
)
| Static method | Description |
|---|---|
| getBlendHEX | Creates an array relative to the blend between two colors in hexadecimal notation |
| getBlendHEXObject | Creates an array of objects relative to the blend between two colors in hexadecimal notation |
| getBlendHEXA | Creates an array relative to the blend between two colors in hexadecimal notation with alpha |
| getBlendHEXAObject | Creates an array of objects relative to the blend between two colors in hexadecimal notation with alpha |
| getBlendRGB | Creates an array relative to the blend between two colors in RGB notation |
| getBlendRGBObject | Creates an array of objects relative to the blend between two colors in RGB notation |
| getBlendRGBA | Creates an array relative to the blend between two colors in RGB notation with alpha |
| getBlendRGBAObject | Creates an array of objects relative to the blend between two colors in RGB notation with alpha |
| getBlendHSL | Creates an array relative to the blend between two colors in HSL notation |
| getBlendHSLObject | Creates an array of objects relative to the blend between two colors in HSL notation |
| getBlendHSLA | Creates an array relative to the blend between two colors in HSL notation with alpha |
| getBlendHSLAObject | Creates an array of objects relative to the blend between two colors in HSL notation with alpha |
| getBlendCIELab | Creates an array relative to the blend between two colors in CIE L*a*b notation |
| getBlendCIELabObject | Creates an array of objects relative to the blend between two colors in CIE L*a*b notation |
| getBlendCIELabA | Creates an array relative to the blend between two colors in CIE L*a*b notation with alpha |
| getBlendCIELabAObject | Creates an array of objects relative to the blend between two colors in CIE L*a*b notation with alpha |
ColorTranslator.getBlendHEX('#FF0000', '#0000FF', 5);
// [
// "#FF0000",
// "#BF003F",
// "#7F007F",
// "#3F00BF",
// "#0000FF"
// ]
ColorTranslator.getBlendHSLA('#FF000000', '#0000FFFF', 3);
// [
// "hsl(0 100% 50% / 0)",
// "hsl(300 100% 25% / 0.5)",
// "hsl(240 100% 50% / 1)"
// ]
ColorTranslator.getBlendRGBAObject('#F000', 'rgba(0,0,255,1)', 5);
// [
// {R: 255, G: 0, B: 0, A: 0},
// {R: 191.25, G: 0, B: 63.75, A: 0.25},
// {R: 127.5, G: 0, B: 127.5, A: 0.5},
// {R: 63.75, G: 0, B: 191.25, A: 0.75},
// {R: 0, G: 0, B: 255, A: 1}
// ]
You can also consult the demo 6 to check the use of these static methods.
The static methods to mix colors accept an array of any of the mentioned inputs as the first parameter. The second parameter is optional and specifies the mixing mode (by default it will be ADDITIVE). And the third parameter is also optional and it is an options object (this third option is not present in the methods to generate HEX colors):
Note: The subtractive mix simulates the mixing of pigments, to achieve this, the rgb colors are converted to ryb color model, the addition is performed in this mode and at the end the result is converted back to rgb. The result is OK most of the time, but as this is not a real mix of pigments, sometimes the result could differ from the reality.
// If mode is not sent, the default will be "ADDITIVE"
getMixColorsStaticMethod(
colors: [string | object][],
options?: Options
)
// Specifying the mix mode
getMixColorsStaticMethod(
colors: [string | object][],
mode: 'ADDITIVE' | 'SUBTRACTIVE',
options?: Options
)
| Static method | Description |
|---|---|
| getMixHEX | Gets the mix of the input colors in hexadecimal notation |
| getMixHEXObject | Gets the mix of the input colors in an object in hexadecimal notation |
| getMixHEXA | Gets the mix of the input colors in hexadecimal notation with alpha |
| getMixHEXAObject | Gets the mix of the input colors in an object in hexadecimal notation with alpha |
| getMixRGB | Gets the mix of the input colors in RGB notation |
| getMixRGBObject | Gets the mix of the input colors in an object in RGB notation |
| getMixRGBA | Gets the mix of the input colors in RGB notation with alpha |
| getMixRGBAObject | Gets the mix of the input colors in an object in RGB notation with alpha |
| getMixHSL | Gets the mix of the input colors in HSL notation |
| getMixHSLObject | Gets the mix of the input colors in an object in HSL notation |
| getMixHSLA | Gets the mix of the input colors in HSL notation with alpha |
| getMixHSLAObject | Gets the mix of the input colors in an object in HSL notation with alpha |
| getMixCIELab | Gets the mix of the input colors in CIE L*a*b color notation |
| getMixCIELabObject | Gets the mix of the input colors in an object in CIE L*a*b color notation |
| getMixCIELabA | Gets the mix of the input colors in CIE L*a*b color notation with alpha |
| getMixCIELabAObject | Gets the mix of the input colors in an object in CIE L*a*b color notation with alpha |
ColorTranslator.getMixHEX(['#FF0000', '#0000FF']);
// #FF00FF
ColorTranslator.getMixHSL(['rgba(255, 0, 0, 1)', '#00FF00']);
// hsl(60 100% 50%)
ColorTranslator.getMixHEXAObject(['#F00', 'rgb(0, 0, 255)'], 'ADDITIVE');
// { R: '0xFF', G: '0x00', B: '0xFF', A: '0xFF' }
ColorTranslator.getMixHEX(['#FF0', '#F00'], 'SUBTRACTIVE');
// #FF8800
You can also consult the demo 8 and demo 9 to check the use of these static methods.
The static methods to get shades or tints of a color accept any of the mentioned inputs as the first parameter. The second parameter specifies the number of shades or tints that should be returned and the third parameter is optional and it is an options object. This method will return the colors in the same format that was sent as input:
// If shades is not sent, the default will be 5
getShades(
color: string | object,
options?: Options
)
// Specifying the shades number
getShades(
color: string | object,
shades: number,
options?: Options
)
// If tints is not sent, the default will be 5
getTints(
color: string | object,
options?: Options
)
// Specifying the tints number
getTints(
color: string | object,
tints: number,
options?: Options
)
| Static method | Description |
|---|---|
| getShades | Gets shades of a colour (mix the color with black increasing its darkness) |
| getTints | Gets tints of a colour (mix the color with white increasing its lightness) |
ColorTranslator.getShades('#FF0000', 5);
// [
// "#D40000",
// "#AA0000",
// "#800000",
// "#550000",
// "#2A0000"
// ]
ColorTranslator.getTints({r: 255, g: 0, b: 0, a: 0.5}, 5);
// [
// {R: 255, G: 42.5, B: 42.5, A: 0.5},
// {R: 255, G: 85, B: 85, A: 0.5},
// {R: 255, G: 127.5, B: 127.5, A: 0.5},
// {R: 255, G: 170, B: 170, A: 0.5},
// {R: 255, G: 212.5, B: 212.5, A: 0.5}
// ]
You can also consult the demo 7 to check the use of these static methods.
The static method to create color harmonies accepts four parmeters, the first one could be any of the mentioned inputs, the second one is optional and it is to specify the kind of harmony (by default it will be "COMPLEMENTARY"), the third one is also optional and it specifies if the returned harmony is based on additive or subtractive colors (by default it will be "ADDITIVE"), and the fourth parameter is also optional and it is an options object. This method will return the colors in the same format that was sent as input:
// If harmony is not sent, the default will be "COMPLEMENTARY"
// If mode is not sent, the default will be "ADDITIVE"
getHarmony(
color: string | object,
options?: Options
)
// If mode is not sent, the default will be "ADDITIVE"
getHarmony(
color: string | object,
harmony: 'ANALOGOUS' | 'COMPLEMENTARY' | 'SPLIT_COMPLEMENTARY' | 'TRIADIC' | 'TETRADIC' | 'SQUARE',
options?: Options
)
// If harmony is not sent, the default will be "COMPLEMENTARY"
getHarmony(
color: string | object,
mode: 'ADDITIVE' | 'SUBTRACTIVE',
options?: Options
)
getHarmony(
color: string | object,
harmony: 'ANALOGOUS' | 'COMPLEMENTARY' | 'SPLIT_COMPLEMENTARY' | 'TRIADIC' | 'TETRADIC' | 'SQUARE',
mode: 'ADDITIVE' | 'SUBTRACTIVE',
options?: Options
)
| Static method | Description |
|---|---|
| getHarmony | Returns an array of colors representing the harmony requested. The color output will be the same that was sent as input |
| Harmony | Description | Returned colors |
|---|---|---|
| ANALOGOUS | Returns the same color plus the two relative analogous colours | 3 |
| COMPLEMENTARY | Returns the same color plus the relative complementary color | 2 |
| SPLIT_COMPLEMENTARY | Returns the same color plus the two relative split complementary colours | 3 |
| SQUARE | Returns the same color plus the three relative evenly square colours | 4 |
| TETRADIC | Returns the same color plus the three relative tetradic colours | 4 |
| TRIADIC | Returns the same color plus the two relative evenly triadic colors | 3 |
ColorTranslator.getHarmony('#FF00FF');
// ["#FF00FF", "#00FF00"]
ColorTranslator.getHarmony('rgba(0 255 255 / 0.5)', 'ANALOGOUS');
// [
// "rgba(0 255 255 / 0.5)",
// "rgba(0 127.5 255 / 0.5)",
// "rgba(0 255 127.5 / 0.5)"
// ]
ColorTranslator.getHarmony(
{ r: 115, g: 200, b: 150, a: 0.5 },
'COMPLEMENTARY',
'ADDITIVE',
{ decimals: 2 }
);
// [
// {R: 115, G: 200, B: 150, A: 0.5},
// {R: 200, G: 123.75, B: 115, A: 0.5}
// ]
ColorTranslator.getHarmony('#FF0000', 'COMPLEMENTARY', 'SUBTRACTIVE');
// ["#FF0000", "#00FF00"]
You can also consult the demo 10 and demo 11 to check the use of this static method.
The package has its own type definitions, so it can be used in a TypeScript project without any issues. The next enums and interfaces are exposed and can be imported in your project:
You can send these values as strings and it will be checked by TypeScript if the string is correct. But for comodity, you can use the Harmony and Mix enums exported in the library.
Harmony.COMPLEMENTARY === 'COMPLEMENTARY';
Mix.ADDITIVE === 'ADDITIVE'
This is the type of the options object that can be sent to the class constructor or to the static methods.
interface InputOptions {
decimals?: number;
legacyCSS?: boolean;
spacesAfterCommas?: boolean;
anglesUnit?: 'none' | 'deg' | 'grad' | 'rad' | 'turn';
rgbUnit?: 'none' | 'percent';
cmykUnit?: 'none' | 'percent';
alphaUnit?: 'none' | 'percent';
cmykFunction?: 'device-cmyk' | 'cmyk';
}
This type is returned by the HEXObject, and HEXAObject properties, the toHEXObject, toHEXAObject, getBlendHEXObject, getBlendHEXAObject, getMixHEXObject, and the getMixHEXAObject methods, and the getShades, getTints, and getHarmony methods (when the input is an HEXObject).
interface HEXObject {
R: string;
G: string;
B: string;
A?: string;
}
This type is returned by the RGBObject, and RGBAObject properties, the toRGBObject, toRGBAObject, getBlendRGBObject, getBlendRGBAObject, getMixRGBObject, and the getMixRGBAObject methods, and the getShades, getTints, and getHarmony methods (when the input is an RGBObject).
interface RGBObject {
R: number;
G: number;
B: number;
A?: number;
}
This type is returned by the HSLObject, and HSLAObject properties, the toHSLObject, toHSLAObject, getBlendHSLObject, getBlendHSLAObject, getMixHSLObject, and the getMixHSLAObject methods, and the getShades, getTints, and getHarmony methods (when the input is an HSLObject).
interface HSLObject {
H: number;
S: number;
L: number;
A?: number;
}
This type is returned by the CIELabObject, and CIELabAObject properties, the toCIELabObject, toCIELabAObject, getBlendCIELabObject, getBlendCIELabAObject, getMixCIELabObject, and the getMixCIELabAObject methods, and the getShades, getTints, and getHarmony methods (when the input is an CIELabObject).
interface CIELabObject {
L: number;
a: number;
b: number;
A?: number;
}
This type is returned by the CMYKObject property, and the toCMYKObject and toCMYKAObject methods.
interface CMYKObject {
C: number;
M: number;
Y: number;
K: number;
}
[4.1.0] - 2023-11-27
getBlendXXX methods overloads to make it possible to omit optional parametersgetMixXXX methods overloads to make it possible to omit optional parametersgetHarmony method overloads to make it possible to omit optional parametersMix and Harmony making it possible to send also stringsshades and tints parameters of the getShades and getTints methods respectivelygetBlendXXX and toXXX methods which were ignoring the decimals sent and always using MAX_DECIMALSCIELabObject not being exported with the libraryFAQs
A JavaScript library, written in TypeScript, to convert among different color models
The npm package colortranslator receives a total of 15,396 weekly downloads. As such, colortranslator popularity was classified as popular.
We found that colortranslator demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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