HEX <=> RGB Conversion

A two way color conversion micro-library for Hexadecimal and RGB integer colors, weighing in at only 162 bytes gzipped. This micro-library is completely self contained with no external dependencies.

Features

• Supported Methods

  • toRGB
  • toHex

• Tested Environments

  • ES5
  • Node.js
  • Rhino
  • Development (console, etc.)
  • Safari
  • Google Chrome
  • Internet Explorer
  • iPhone Safari
  • iPad Safari
  • Firefox
  • Opera

How to use

    //convert Hexadecimal color to RGB values
    var rgb = toRGB("c0ffee");
    //rgb === [192, 255, 238]

    //convert RGB values to Hexadecimal color
    var hex = toHex(192, 255, 238);
    //hex === "c0ffee"

Documentation

Options:

If you don't want these methods added to the window object simply modify the immediate function to pass in the JavaScript object of your choosing.

Methods:

• toRGB (String color)

  • summary:

    • Converts a 6 digit Hexadecimal string value to an RGB integer array. Important! input must be a 6 digit Hexadecimal string "bad" will not convert correctly but "bbaadd" will. To keep the function as light as possible there is no idiot-proofing, if you pass in bad data I'm not fixing it for you :-)

  • example:

    • Convert the Hexadecimal value "c0ffee" (a blue color) to RGB integers. The variable "rgb" will be equal to [192, 255, 238]

      var rgb = toRGB("c0ffee");
      //rgb === [192, 255, 238]
      

  • color: String

    • 6 digit Hexadecimal string value

  • returns: Array

    • An array containing the RGB integers in the following format [red, green, blue]

• toHex (Number red, Number green, Number blue)

  • summary:

    • Converts 3 RGB integer values into a 6 digit Hexadecimal string. Important! input must be integers with a range of 0 to 255. To keep the function as light as possible there is no idiot-proofing, if you pass in bad data I'm not fixing it for you :-)

  • example:

    • Convert the RGB values [192, 255, 238] to Hexadecimal string. The variable "hex" will be equal to "c0ffee"

      var hex = toHex(192, 255, 238);
      //hex === "c0ffee"
      

  • red: Number

    • number ranging from 0 to 255 indicating the amount of red

  • green: Number

    • number ranging from 0 to 255 indicating the amount of green

  • blue: Number

    • number ranging from 0 to 255 indicating the amount of blue

  • returns: String

    • 6 digit Hexadecimal string value

License

(The MIT License)

Copyright (c) 2011 Daniel Lamb

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.