title: Iris Colour Picker: get selected colour as RGB value
body: <p>Using the Iris colour picker, is it possible to get the selected colour in rgb format? Currently I always get the selected colour as a hex code.</p>
  
  <p><a href="http://automattic.github.io/Iris/" rel="nofollow noreferrer">http://automattic.github.io/Iris/</a></p>
  
  <pre><code>&lt;input class"col-picker"/&gt;
  
  ....
  
  $('.col-picker').iris({
      mode: 'rgb', // doesn't return colour in rgb
      change: function(evt, ui) {
  
          console.log('colour as rgb', ui.color.toString());
  
          // Above always outputs hex values not rgb
      }
  });
  </code></pre>