text: var nodes = require('../nodes')
    , rgba = require('./rgba');
  
  /**
   * Return the red component of the given `color`,
   * or set the red component to the optional second `value` argument.
   *
   * Examples:
   *
   *    red(#c00)
   *    // => 204
   *
   *    red(#000, 255)
   *    // => #f00
   *
   * @param {RGBA|HSLA} color
   * @param {Unit} [value]
   * @return {Unit|RGBA}
   * @api public
   */
  
  module.exports = function red(color, value){
    color = color.rgba;
    if (value) {
      return rgba(
        value,
        new nodes.Unit(color.g),
        new nodes.Unit(color.b),
        new nodes.Unit(color.a)
      );
    }
    return new nodes.Unit(color.r, '');
  };
  