Created
August 25, 2017 17:00
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Set of utilities for dealing with colors
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import { chunk, join, map, repeat } from 'lodash' | |
const repeatArray = (array, size) => map(array, repeatVal(2)) | |
const joinChunk = (array, size) => map(chunk(array, size), joinValues) | |
const repeatVal = size => val => repeat(val, size) | |
const hexToDec = hex => parseInt(hex, 16) | |
const joinValues = arr => join(arr, '') | |
export const hexToRGBA = (hex, alpha = 1) => { | |
const validColor = | |
hex.indexOf('#') === 0 ? hex : colorToHex(hex) | |
if (validColor) { | |
const c = validColor.substring(1).split('') | |
const color = c.length === 3 ? repeatArray(c, 2) : joinChunk(c, 2) | |
const rgb = map(color, hexToDec) | |
return `rgba(${rgb[0]}, ${rgb[1]}, ${rgb[2]}, ${alpha})` | |
} else { | |
return hex.indexOf('rgb(') === 0 | |
? hex.replace('rgb', 'rgba').replace(')', `, ${alpha})`) | |
: hex | |
} | |
} | |
export const colorToHex = color => { | |
var colors = { | |
aliceblue: '#f0f8ff', | |
antiquewhite: '#faebd7', | |
aqua: '#00ffff', | |
aquamarine: '#7fffd4', | |
azure: '#f0ffff', | |
beige: '#f5f5dc', | |
bisque: '#ffe4c4', | |
black: '#000000', | |
blanchedalmond: '#ffebcd', | |
blue: '#0000ff', | |
blueviolet: '#8a2be2', | |
brown: '#a52a2a', | |
burlywood: '#deb887', | |
cadetblue: '#5f9ea0', | |
chartreuse: '#7fff00', | |
chocolate: '#d2691e', | |
coral: '#ff7f50', | |
cornflowerblue: '#6495ed', | |
cornsilk: '#fff8dc', | |
crimson: '#dc143c', | |
cyan: '#00ffff', | |
darkblue: '#00008b', | |
darkcyan: '#008b8b', | |
darkgoldenrod: '#b8860b', | |
darkgray: '#a9a9a9', | |
darkgreen: '#006400', | |
darkkhaki: '#bdb76b', | |
darkmagenta: '#8b008b', | |
darkolivegreen: '#556b2f', | |
darkorange: '#ff8c00', | |
darkorchid: '#9932cc', | |
darkred: '#8b0000', | |
darksalmon: '#e9967a', | |
darkseagreen: '#8fbc8f', | |
darkslateblue: '#483d8b', | |
darkslategray: '#2f4f4f', | |
darkturquoise: '#00ced1', | |
darkviolet: '#9400d3', | |
deeppink: '#ff1493', | |
deepskyblue: '#00bfff', | |
dimgray: '#696969', | |
dodgerblue: '#1e90ff', | |
firebrick: '#b22222', | |
floralwhite: '#fffaf0', | |
forestgreen: '#228b22', | |
fuchsia: '#ff00ff', | |
gainsboro: '#dcdcdc', | |
ghostwhite: '#f8f8ff', | |
gold: '#ffd700', | |
goldenrod: '#daa520', | |
gray: '#808080', | |
green: '#008000', | |
greenyellow: '#adff2f', | |
honeydew: '#f0fff0', | |
hotpink: '#ff69b4', | |
'indianred ': '#cd5c5c', | |
indigo: '#4b0082', | |
ivory: '#fffff0', | |
khaki: '#f0e68c', | |
lavender: '#e6e6fa', | |
lavenderblush: '#fff0f5', | |
lawngreen: '#7cfc00', | |
lemonchiffon: '#fffacd', | |
lightblue: '#add8e6', | |
lightcoral: '#f08080', | |
lightcyan: '#e0ffff', | |
lightgoldenrodyellow: '#fafad2', | |
lightgrey: '#d3d3d3', | |
lightgreen: '#90ee90', | |
lightpink: '#ffb6c1', | |
lightsalmon: '#ffa07a', | |
lightseagreen: '#20b2aa', | |
lightskyblue: '#87cefa', | |
lightslategray: '#778899', | |
lightsteelblue: '#b0c4de', | |
lightyellow: '#ffffe0', | |
lime: '#00ff00', | |
limegreen: '#32cd32', | |
linen: '#faf0e6', | |
magenta: '#ff00ff', | |
maroon: '#800000', | |
mediumaquamarine: '#66cdaa', | |
mediumblue: '#0000cd', | |
mediumorchid: '#ba55d3', | |
mediumpurple: '#9370d8', | |
mediumseagreen: '#3cb371', | |
mediumslateblue: '#7b68ee', | |
mediumspringgreen: '#00fa9a', | |
mediumturquoise: '#48d1cc', | |
mediumvioletred: '#c71585', | |
midnightblue: '#191970', | |
mintcream: '#f5fffa', | |
mistyrose: '#ffe4e1', | |
moccasin: '#ffe4b5', | |
navajowhite: '#ffdead', | |
navy: '#000080', | |
oldlace: '#fdf5e6', | |
olive: '#808000', | |
olivedrab: '#6b8e23', | |
orange: '#ffa500', | |
orangered: '#ff4500', | |
orchid: '#da70d6', | |
palegoldenrod: '#eee8aa', | |
palegreen: '#98fb98', | |
paleturquoise: '#afeeee', | |
palevioletred: '#d87093', | |
papayawhip: '#ffefd5', | |
peachpuff: '#ffdab9', | |
peru: '#cd853f', | |
pink: '#ffc0cb', | |
plum: '#dda0dd', | |
powderblue: '#b0e0e6', | |
purple: '#800080', | |
rebeccapurple: '#663399', | |
red: '#ff0000', | |
rosybrown: '#bc8f8f', | |
royalblue: '#4169e1', | |
saddlebrown: '#8b4513', | |
salmon: '#fa8072', | |
sandybrown: '#f4a460', | |
seagreen: '#2e8b57', | |
seashell: '#fff5ee', | |
sienna: '#a0522d', | |
silver: '#c0c0c0', | |
skyblue: '#87ceeb', | |
slateblue: '#6a5acd', | |
slategray: '#708090', | |
snow: '#fffafa', | |
springgreen: '#00ff7f', | |
steelblue: '#4682b4', | |
tan: '#d2b48c', | |
teal: '#008080', | |
thistle: '#d8bfd8', | |
tomato: '#ff6347', | |
turquoise: '#40e0d0', | |
violet: '#ee82ee', | |
wheat: '#f5deb3', | |
white: '#ffffff', | |
whitesmoke: '#f5f5f5', | |
yellow: '#ffff00', | |
yellowgreen: '#9acd32', | |
} | |
return colors[color.toLowerCase()] | |
} |
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