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@asamuzakjp/css-color
Advanced tools
Resolve and convert CSS colors.
npm i @asamuzakjp/css-color
import { convert, resolve, utils } from '@asamuzakjp/css-color';
const resolvedValue = resolve(
'color-mix(in oklab, lch(67.5345 42.5 258.2), color(srgb 0 0.5 0))'
);
// 'oklab(0.620754 -0.0931934 -0.00374881)'
const convertedValue = convert.colorToHex('lab(46.2775% -47.5621 48.5837)');
// '#008000'
const result = utils.isColor('green');
// true
resolves CSS color
color
string color value
opt
object? options (optional, default {}
)
opt.currentColor
string?
currentcolor
keywordrgb(none none none / none)
opt.customProperty
object?
--
prefixed property name as a key and it's value,
e.g.
const opt = {
customProperty: {
'--some-color': '#008000',
'--some-length': '16px'
}
};
callback
function to get the value of the custom property,
e.g.
const node = document.getElementById('foo');
const opt = {
customProperty: {
callback: node.style.getPropertyValue
}
};
opt.dimension
object?
1em === 12px
, 1rem === 16px
and 100vw === 1024px
, then
const opt = {
dimension: {
em: 12,
rem: 16,
vw: 10.24
}
};
callback
function to get the value as a number in pixels,
e.g.
const opt = {
dimension: {
callback: unit => {
switch (unit) {
case 'em':
return 12;
case 'rem':
return 16;
case 'vw':
return 10.24;
default:
return;
}
}
}
};
opt.format
string?
computedValue
(default), computed value of the colorspecifiedValue
, specified value of the colorhex
, hex color notation, i.e. #rrggbb
hexAlpha
, hex color notation with alpha channel, i.e. #rrggbbaa
Returns string? one of rgba?()
, #rrggbb(aa)?
, color-name
, color(color-space r g b / alpha)
, color(color-space x y z / alpha)
, (ok)?lab(l a b / alpha)
, (ok)?lch(l c h / alpha)
, '(empty-string)'
, null
computedValue
, values are numbers, however rgb()
values are integersspecifiedValue
, returns empty string
for unknown and/or invalid colorhex
, returns null
for transparent
, and also returns null
if any of r
, g
, b
, alpha
is not a numberhexAlpha
, returns #00000000
for transparent
, however returns null
if any of r
, g
, b
, alpha
is not a numberContains various color conversion functions.
convert number to hex string
value
number color valueReturns string hex string: 00..ff
convert color to hex
Returns string #rrggbb(aa)?
convert color to hsl
Returns Array<number> [h, s, l, alpha]
convert color to hwb
Returns Array<number> [h, w, b, alpha]
convert color to lab
Returns Array<number> [l, a, b, alpha]
convert color to lch
Returns Array<number> [l, c, h, alpha]
convert color to oklab
Returns Array<number> [l, a, b, alpha]
convert color to oklch
Returns Array<number> [l, c, h, alpha]
convert color to rgb
Returns Array<number> [r, g, b, alpha]
convert color to xyz
Returns Array<number> [x, y, z, alpha]
convert color to xyz-d50
Returns Array<number> [x, y, z, alpha]
Contains utility functions.
is valid color type
color
string color value
Returns boolean
The following resources have been of great help in the development of the CSS color.
Copyright (c) 2024 asamuzaK (Kazz)
FAQs
CSS color - Resolve and convert CSS colors.
The npm package @asamuzakjp/css-color receives a total of 6,717,322 weekly downloads. As such, @asamuzakjp/css-color popularity was classified as popular.
We found that @asamuzakjp/css-color demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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