JarCastingTinyColor
JavaScript color tooling
TinyColor is a small, fast library for color manipulation and conversion in JavaScript. It allows many forms of input, while providing color conversions and other color utility functions. It has no dependencies.
Including in a browser
Download tinycolor.js or install it with bower:
bower install tinycolor
Then just include it in the page in a script tag:
<script type='text/javascript' src='tinycolor.js'></script>
<script type='text/javascript'>
var color = tinycolor("red");
</script>
Including in node
tinycolor may also be included as a node module like so:
npm install tinycolor2
Then it can be used in your script like so:
var tinycolor = require("tinycolor2");
var color = tinycolor("red");
Usage
Call tinycolor(input) or new tinycolor(input), and you will have an object with the following properties. See Accepted String Input and Accepted Object Input below for more information about what is accepted.
Accepted String Input
The string parsing is very permissive. It is meant to make typing a color as input as easy as possible. All commas, percentages, parenthesis are optional, and most input allow either 0-1, 0%-100%, or 0-n (where n is either 100, 255, or 360 depending on the value).
HSL and HSV both require either 0%-100% or 0-1 for the S/L/V properties. The H (hue) can have values between 0%-100% or 0-360.
RGB input requires either 0-255 or 0%-100%.
If you call tinycolor.fromRatio, RGB and Hue input can also accept 0-1.
Here are some examples of string input:
Hex, 8-digit (RGBA) Hex
tinycolor("#000");
tinycolor("000");
tinycolor("#369C");
tinycolor("369C");
tinycolor("#f0f0f6");
tinycolor("f0f0f6");
tinycolor("#f0f0f688");
tinycolor("f0f0f688");
RGB, RGBA
tinycolor("rgb (255, 0, 0)");
tinycolor("rgb 255 0 0");
tinycolor("rgba (255, 0, 0, .5)");
tinycolor({ r: 255, g: 0, b: 0 });
tinycolor.fromRatio({ r: 1, g: 0, b: 0 });
tinycolor.fromRatio({ r: .5, g: .5, b: .5 });
HSL, HSLA
tinycolor("hsl(0, 100%, 50%)");
tinycolor("hsla(0, 100%, 50%, .5)");
tinycolor("hsl(0, 100%, 50%)");
tinycolor("hsl 0 1.0 0.5");
tinycolor({ h: 0, s: 1, l: .5 });
tinycolor.fromRatio({ h: 1, s: 0, l: 0 });
tinycolor.fromRatio({ h: .5, s: .5, l: .5 });
HSV, HSVA
tinycolor("hsv(0, 100%, 100%)");
tinycolor("hsva(0, 100%, 100%, .5)");
tinycolor("hsv (0 100% 100%)");
tinycolor("hsv 0 1 1");
tinycolor({ h: 0, s: 100, v: 100 });
tinycolor.fromRatio({ h: 1, s: 0, v: 0 });
tinycolor.fromRatio({ h: .5, s: .5, v: .5 });
Named
tinycolor("RED");
tinycolor("blanchedalmond");
tinycolor("darkblue");
Accepted Object Input
If you are calling this from code, you may want to use object input. Here are some examples of the different types of accepted object inputs:
{ r: 255, g: 0, b: 0 }
{ r: 255, g: 0, b: 0, a: .5 }
{ h: 0, s: 100, l: 50 }
{ h: 0, s: 100, v: 100 }
Methods
getFormat
Returns the format used to create the tinycolor instance
var color = tinycolor("red");
color.getFormat(); // "name"
color = tinycolor({r:255, g:255, b:255});
color.getFormat(); // "rgb"
getOriginalInput
Returns the input passed into the constructor used to create the tinycolor instance
var color = tinycolor("red");
color.getOriginalInput(); // "red"
color = tinycolor({r:255, g:255, b:255});
color.getOriginalInput(); // "{r: 255, g: 255, b: 255}"
isValid
Return a boolean indicating whether the color was successfully parsed. Note: if the color is not valid then it will act like black when being used with other methods.
var color1 = tinycolor("red");
color1.isValid(); // true
color1.toHexString(); // "#ff0000"
var color2 = tinycolor("not a color");
color2.isValid(); // false
color2.toString(); // "#000000"
getBrightness
Returns the perceived brightness of a color, from 0-255, as defined by Web Content Accessibility Guidelines (Version 1.0).
var color1 = tinycolor("#fff");
color1.getBrightness(); // 255
var color2 = tinycolor("#000");
color2.getBrightness(); // 0
isLight
Return a boolean indicating whether the color's perceived brightness is light.
var color1 = tinycolor("#fff");
color1.isLight(); // true
var color2 = tinycolor("#000");
color2.isLight(); // false
isDark
Return a boolean indicating whether the color's perceived brightness is dark.
var color1 = tinycolor("#fff");
color1.isDark(); // false
var color2 = tinycolor("#000");
color2.isDark(); // true
getLuminance
Returns the perceived luminance of a color, from 0-1 as defined by Web Content Accessibility Guidelines (Version 2.0).
var color1 = tinycolor("#fff");
color1.getLuminance(); // 1
var color2 = tinycolor("#000");
color2.getLuminance(); // 0
getAlpha
Returns the alpha value of a color, from 0-1.
var color1 = tinycolor("rgba(255, 0, 0, .5)");
color1.getAlpha(); // 0.5
var color2 = tinycolor("rgb(255, 0, 0)");
color2.getAlpha(); // 1
var color3 = tinycolor("transparent");
color3.getAlpha(); // 0
setAlpha
Sets the alpha value on a current color. Accepted range is in between 0-1.
var color = tinycolor("red");
color.getAlpha(); // 1
color.setAlpha(.5);
color.getAlpha(); // .5
color.toRgbString(); // "rgba(255, 0, 0, .5)"
String Representations
The following methods will return a property for the alpha value, which can be ignored: toHsv, toHsl, toRgb
toHsv
var color = tinycolor("red");
color.toHsv(); // { h: 0, s: 1, v: 1, a: 1 }
toHsvString
var color = tinycolor("red");
color.toHsvString(); // "hsv(0, 100%, 100%)"
color.setAlpha(0.5);
color.toHsvString(); // "hsva(0, 100%, 100%, 0.5)"
toHsl
var color = tinycolor("red");
color.toHsl(); // { h: 0, s: 1, l: 0.5, a: 1 }
toHslString
var color = tinycolor("red");
color.toHslString(); // "hsl(0, 100%, 50%)"
color.setAlpha(0.5);
color.toHslString(); // "hsla(0, 100%, 50%, 0.5)"
toHex
var color = tinycolor("red");
color.toHex(); // "ff0000"
toHexString
var color = tinycolor("red");
color.toHexString(); // "#ff0000"
toHex8
var color = tinycolor("red");
color.toHex8(); // "ff0000ff"
toHex8String
var color = tinycolor("red");
color.toHex8String(); // "#ff0000ff"
toRgb
var color = tinycolor("red");
color.toRgb(); // { r: 255, g: 0, b: 0, a: 1 }
toRgbString
var color = tinycolor("red");
color.toRgbString(); // "rgb(255, 0, 0)"
color.setAlpha(0.5);
color.toRgbString(); // "rgba(255, 0, 0, 0.5)"
toPercentageRgb
var color = tinycolor("red");
color.toPercentageRgb() // { r: "100%", g: "0%", b: "0%", a: 1 }
toPercentageRgbString
var color = tinycolor("red");
color.toPercentageRgbString(); // "rgb(100%, 0%, 0%)"
color.setAlpha(0.5);
color.toPercentageRgbString(); // "rgba(100%, 0%, 0%, 0.5)"
toName
var color = tinycolor("red");
color.toName(); // "red"
toFilter
var color = tinycolor("red");
color.toFilter(); // "progid:DXImageTransform.Microsoft.gradient(startColorstr=#ffff0000,endColorstr=#ffff0000)"
toString
Print to a string, depending on the input format. You can also override this by passing one of "rgb", "prgb", "hex6", "hex3", "hex8", "name", "hsl", "hsv" into the function.
var color1 = tinycolor("red");
color1.toString(); // "red"
color1.toString("hsv"); // "hsv(0, 100%, 100%)"
var color2 = tinycolor("rgb(255, 0, 0)");
color2.toString(); // "rgb(255, 0, 0)"
color2.setAlpha(.5);
color2.toString(); // "rgba(255, 0, 0, 0.5)"
Color Modification
These methods manipulate the current color, and return it for chaining. For instance:
tinycolor("red").lighten().desaturate().toHexString() // "#f53d3d"
lighten
lighten: function(amount = 10) -> TinyColor. Lighten the color a given amount, from 0 to 100. Providing 100 will always return white.
tinycolor("#f00").lighten().toString(); // "#ff3333"
tinycolor("#f00").lighten(100).toString(); // "#ffffff"
brighten
brighten: function(amount = 10) -> TinyColor. Brighten the color a given amount, from 0 to 100.
tinycolor("#f00").brighten().toString(); // "#ff1919"
darken
darken: function(amount = 10) -> TinyColor. Darken the color a given amount, from 0 to 100. Providing 100 will always return black.
tinycolor("#f00").darken().toString(); // "#cc0000"
tinycolor("#f00").darken(100).toString(); // "#000000"
desaturate
desaturate: function(amount = 10) -> TinyColor. Desaturate the color a given amount, from 0 to 100. Providing 100 will is the same as calling greyscale.
tinycolor("#f00").desaturate().toString(); // "#f20d0d"
tinycolor("#f00").desaturate(100).toString(); // "#808080"
saturate
saturate: function(amount = 10) -> TinyColor. Saturate the color a given amount, from 0 to 100.
tinycolor("hsl(0, 10%, 50%)").saturate().toString(); // "hsl(0, 20%, 50%)"
greyscale
greyscale: function() -> TinyColor. Completely desaturates a color into greyscale. Same as calling desaturate(100).
tinycolor("#f00").greyscale().toString(); // "#808080"
spin
spin: function(amount = 0) -> TinyColor. Spin the hue a given amount, from -360 to 360. Calling with 0, 360, or -360 will do nothing (since it sets the hue back to what it was before).
tinycolor("#f00").spin(180).toString(); // "#00ffff"
tinycolor("#f00").spin(-90).toString(); // "#7f00ff"
tinycolor("#f00").spin(90).toString(); // "#80ff00"
// spin(0) and spin(360) do nothing
tinycolor("#f00").spin(0).toString(); // "#ff0000"
tinycolor("#f00").spin(360).toString(); // "#ff0000"
Color Combinations
Combination functions return an array of TinyColor objects unless otherwise noted.
analogous
analogous: function(, results = 6, slices = 30) -> array<TinyColor>.
var colors = tinycolor("#f00").analogous();
colors.map(function(t) { return t.toHexString(); }); // [ "#ff0000", "#ff0066", "#ff0033", "#ff0000", "#ff3300", "#ff6600" ]
monochromatic
monochromatic: function(, results = 6) -> array<TinyColor>.
var colors = tinycolor("#f00").monochromatic();
colors.map(function(t) { return t.toHexString(); }); // [ "#ff0000", "#2a0000", "#550000", "#800000", "#aa0000", "#d40000" ]
splitcomplement
splitcomplement: function() -> array<TinyColor>.
var colors = tinycolor("#f00").splitcomplement();
colors.map(function(t) { return t.toHexString(); }); // [ "#ff0000", "#ccff00", "#0066ff" ]
triad
triad: function() -> array<TinyColor>.
var colors = tinycolor("#f00").triad();
colors.map(function(t) { return t.toHexString(); }); // [ "#ff0000", "#00ff00", "#0000ff" ]
tetrad
tetrad: function() -> array<TinyColor>.
var colors = tinycolor("#f00").tetrad();
colors.map(function(t) { return t.toHexString(); }); // [ "#ff0000", "#80ff00", "#00ffff", "#7f00ff" ]
complement
complement: function() -> TinyColor.
tinycolor("#f00").complement().toHexString(); // "#00ffff"
Color Utilities
tinycolor.equals(color1, color2)
tinycolor.mix(color1, color2, amount = 50)
random
Returns a random color.
var color = tinycolor.random();
color.toRgb(); // "{r: 145, g: 40, b: 198, a: 1}"
Readability
TinyColor assesses readability based on the Web Content Accessibility Guidelines (Version 2.0).
readability
readability: function(TinyColor, TinyColor) -> Object. Returns the contrast ratio between two colors.
tinycolor.readability("#000", "#000"); // 1
tinycolor.readability("#000", "#111"); // 1.1121078324840545
tinycolor.readability("#000", "#fff"); // 21
Use the values in your own calculations, or use one of the convenience functions below.
isReadable
isReadable: function(TinyColor, TinyColor, Object) -> Boolean. Ensure that foreground and background color combinations meet WCAG guidelines. Object is optional, defaulting to {level: "AA",size: "small"}. level can be "AA" or "AAA" and size can be "small" or "large".
Here are links to read more about the AA and AAA requirements.
tinycolor.isReadable("#000", "#111", {}); // false
tinycolor.isReadable("#ff0088", "#5c1a72",{level:"AA",size:"small"}); //false
tinycolor.isReadable("#ff0088", "#5c1a72",{level:"AA",size:"large"}), //true
mostReadable
mostReadable: function(TinyColor, [TinyColor, Tinycolor ...], Object) -> Boolean. Given a base color and a list of possible foreground or background colors for that base, returns the most readable color. If none of the colors in the list is readable, mostReadable will return the better of black or white if includeFallbackColors:true.
tinycolor.mostReadable("#000", ["#f00", "#0f0", "#00f"]).toHexString(); // "#00ff00"
tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255"
tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString(); // "#ffffff"
tinycolor.mostReadable("#ff0088", ["#2e0c3a"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString() // "#2e0c3a",
tinycolor.mostReadable("#ff0088", ["#2e0c3a"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString() // "#000000",
See index.html in the project for a demo.
Common operations
clone
clone: function() -> TinyColor. Instantiate a new TinyColor object with the same color. Any changes to the new one won't affect the old one.
var color1 = tinycolor("#F00");
var color2 = color1.clone();
color2.setAlpha(.5);
color1.toString(); // "#ff0000"
color2.toString(); // "rgba(255, 0, 0, 0.5)"