gistfile1.txt

<script>
(function ($) {
  $(function () {
    $("#converter").submit(function(){return false;});
    $("#rgba").bind('keyup change', function () {
      var value = $(this).val();
      setArgb(value);
    });
    $("#argb").bind('keyup change', function () {
      var value = $(this).val();
      setHex(value);
    });
    setArgb = function(val) {
      var valArr = val.split("(")[1].split(")")[0].split(","),
          red = toHex(valArr[0]),
          green = toHex(valArr[1]),
          blue = toHex(valArr[2]),
          alpha = toHex(valArr[3]*255);
      $("#argb").val("#" + alpha + red + green + blue);
    };
    setHex = function(val) {
      var value = val.substring(1,9),
          red = parseInt(value.substring(2,4), 16),
          green = parseInt(value.substring(4,6), 16),
          blue = parseInt(value.substring(6,8), 16),
          alpha = Math.round((parseInt(value.substring(0,2), 16)/255)*10)/10;
      $("#rgba").val("rgba(" + red + "," + green + "," + blue + "," + alpha +")");
    };
    toHex = function(val) {
      val = parseInt(val);
      val = Math.max(0,val);
      val = Math.min(val,255);
      val = Math.round(val);
      return "0123456789ABCDEF".charAt((val-val%16)/16) + "0123456789ABCDEF".charAt(val%16);
    };
  })
}(jQuery));
</script>