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chartjs-color
Advanced tools
Readme
JavaScript library for color conversion and manipulation with support for CSS color strings.
var color = Color("#7743CE");
color.alpha(0.5).lighten(0.5);
console.log(color.hslString()); // "hsla(262, 59%, 81%, 0.5)"
$ npm install color
var Color = require("color")
var color = Color("rgb(255, 255, 255)")
var color = Color({r: 255, g: 255, b: 255})
var color = Color().rgb(255, 255, 255)
var color = Color().rgb([255, 255, 255])
Pass any valid CSS color string into Color()
or a hash of values. Also load in color values with rgb()
, hsl()
, hsv()
, hwb()
, and cmyk()
.
color.red(120)
Set the values for individual channels with alpha
, red
, green
, blue
, hue
, saturation
(hsl), saturationv
(hsv), lightness
, whiteness
, blackness
, cyan
, magenta
, yellow
, black
color.rgb() // {r: 255, g: 255, b: 255}
Get a hash of the rgb values with rgb()
, similarly for hsl()
, hsv()
, and cmyk()
color.rgbArray() // [255, 255, 255]
Get an array of the values with rgbArray()
, hslArray()
, hsvArray()
, and cmykArray()
.
color.red() // 255
Get the value for an individual channel.
color.hslString() // "hsl(320, 50%, 100%)"
Different CSS String formats for the color are on hexString
, rgbString
, percentString
, hslString
, hwbString
, and keyword
(undefined if it's not a keyword color). "rgba"
and "hsla"
are used if the current alpha value of the color isn't 1
.
color.luminosity(); // 0.412
The WCAG luminosity of the color. 0 is black, 1 is white.
color.contrast(Color("blue")) // 12
The WCAG contrast ratio to another color, from 1 (same color) to 21 (contrast b/w white and black).
color.light(); // true
color.dark(); // false
Get whether the color is "light" or "dark", useful for deciding text color.
color.negate() // rgb(0, 100, 255) -> rgb(255, 155, 0)
color.lighten(0.5) // hsl(100, 50%, 50%) -> hsl(100, 50%, 75%)
color.darken(0.5) // hsl(100, 50%, 50%) -> hsl(100, 50%, 25%)
color.saturate(0.5) // hsl(100, 50%, 50%) -> hsl(100, 75%, 50%)
color.desaturate(0.5) // hsl(100, 50%, 50%) -> hsl(100, 25%, 50%)
color.greyscale() // #5CBF54 -> #969696
color.whiten(0.5) // hwb(100, 50%, 50%) -> hwb(100, 75%, 50%)
color.blacken(0.5) // hwb(100, 50%, 50%) -> hwb(100, 50%, 75%)
color.clearer(0.5) // rgba(10, 10, 10, 0.8) -> rgba(10, 10, 10, 0.4)
color.opaquer(0.5) // rgba(10, 10, 10, 0.8) -> rgba(10, 10, 10, 1.0)
color.rotate(180) // hsl(60, 20%, 20%) -> hsl(240, 20%, 20%)
color.rotate(-90) // hsl(60, 20%, 20%) -> hsl(330, 20%, 20%)
color.mix(Color("yellow")) // cyan -> rgb(128, 255, 128)
color.mix(Color("yellow"), 0.3) // cyan -> rgb(77, 255, 179)
// chaining
color.green(100).greyscale().lighten(0.6)
You can can create a copy of an existing color object using clone()
:
color.clone() // -> New color object
And more to come...
The API was inspired by color-js. Manipulation functions by CSS tools like Sass, LESS, and Stylus.
FAQs
Color conversion and manipulation with CSS string support
The npm package chartjs-color receives a total of 676,078 weekly downloads. As such, chartjs-color popularity was classified as popular.
We found that chartjs-color demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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