A tiny script for generating attractive random colors. See the demo for an explanation and some samples. randomColor has been ported to C#, C++, Go, Haskell, Kotlin, Mathematica, PHP, Python, Raku, Objective-C, Java, R, Reason, Dart, Ruby, Rust, Swift and Typescript.
To use randomColor in the browser, download the latest minified version of randomColor and include it on your page. Then call the script:
var color = randomColor(); // a hex code for an attractive color
To use randomColor on the server with node.js, install randomColor from npm then call the script:
npm install randomcolor
var randomColor = require('randomcolor'); // import the script
var color = randomColor(); // a hex code for an attractive color
You can pass an options object to influence the type of color it produces. The options object accepts the following properties:
hue
– Controls the hue of the generated color. You can pass a string representing a color name: red
, orange
, yellow
, green
, blue
, purple
, pink
and monochrome
are currently supported. If you pass a hexidecimal color string such as #00FFFF
, randomColor will extract its hue value and use that to generate colors.
luminosity
– Controls the luminosity of the generated color. You can specify a string containing bright
, light
or dark
.
count
– An integer which specifies the number of colors to generate.
seed
- An integer or string which when passed will cause randomColor to return the same color each time.
format
– A string which specifies the format of the generated color. Possible values are rgb
, rgba
, rgbArray
, hsl
, hsla
, hslArray
and hex
(default).
alpha
– A decimal between 0 and 1. Only relevant when using a format with an alpha channel (rgba
and hsla
). Defaults to a random value.
// Returns a hex code for an attractive color
randomColor();
// Returns an array of ten green colors
randomColor({
count: 10,
hue: 'green'
});
// Returns a hex code for a light blue
randomColor({
luminosity: 'light',
hue: 'blue'
});
// Returns a hex code for a 'truly random' color
randomColor({
luminosity: 'random',
hue: 'random'
});
// Returns a bright color in RGB
randomColor({
luminosity: 'bright',
format: 'rgb' // e.g. 'rgb(225,200,20)'
});
// Returns a dark RGB color with random alpha
randomColor({
luminosity: 'dark',
format: 'rgba' // e.g. 'rgba(9, 1, 107, 0.6482447960879654)'
});
// Returns a dark RGB color with specified alpha
randomColor({
luminosity: 'dark',
format: 'rgba',
alpha: 0.5 // e.g. 'rgba(9, 1, 107, 0.5)',
});
// Returns a light HSL color with random alpha
randomColor({
luminosity: 'light',
format: 'hsla' // e.g. 'hsla(27, 88.99%, 81.83%, 0.6450211517512798)'
});