rgb2hex

Parse any rgb or rgba string into a hex color. Lightweight library, no dependencies!

Installation

via NPM:

$ npm install rgb2hex

via Bower

$ bower install rgb2hex

Usage

Include rgb2hex.js in your web app, by loading it as usual:

<script src="rgb2hex.js"></script>

Using NodeJS

var rgb2hex = require('rgb2hex');

console.log(rgb2hex('rgb(210,43,2525)'));
/**
 * returns:
 * {
 *    hex: '#d22bff',
 *    alpha: 1
 * }
 */

console.log(rgb2hex('rgba(12,173,22,.67)'));
/**
 * returns:
 * {
 *    hex: '#d22bff',
 *    alpha: 0.67
 * }
 */

Using RequireJS

rgb2hex can be also loaded with AMD:

require(['rgb2hex'], function (rgb2hex) {
    // ...
});

Contributing

Please fork, add specs, and send pull requests! In lieu of a formal styleguide, take care to maintain the existing coding style.

Release History

2013-04-22 v0.1.0 first working version
2018-05-24 v0.1.1 updated dependencies switch test framework to jest
2018-06-13 v0.1.2 Fixes uncontrolled resource consumption vulnerability referenced in #1. (ref1, ref2)
2018-06-13 v0.1.3 allow semicolon at the end of an rgb string
2018-06-19 v0.1.4 ignore text before or after the color
2018-07-04 v0.1.5 Fix stripping of color and regexp
2018-07-05 v0.1.6 Prevent Regular Expression Denial of Service attacks
2018-07-05 v0.1.7 Minor coverage fix
2018-07-05 v0.1.8 Better handle alpha values
2018-07-18 v0.1.9 Support transparent colors
2019-11-11 v0.1.10 Support multiple decimal places (#20)
2020-11-24 v0.2.1 TypeScript support
2020-11-25 v0.2.5 Improved TypeScript support