Compare Two HEX Colors in Javascript

function areColorsSimilar(hexColor1, hexColor2)
{
   // convert from hex to rgb array
   var col1 = new Array();
   var col2 = new Array();
   col1['r'] = HexToR(hexColor1);
   col1['g'] = HexToG(hexColor1);
   col1['b'] = HexToB(hexColor1);
   col2['r'] = HexToR(hexColor2);
   col2['g'] = HexToG(hexColor2);
   col2['b'] = HexToB(hexColor2);

   brightness1 = parseInt((parseInt(col1['r']*299,10) + parseInt(col1['g']*587,10) + parseInt(col1['b']*114,10))/1000,10);
   brightness2 = parseInt((parseInt(col2['r']*299,10) + parseInt(col2['g']*587,10) + parseInt(col2['b']*114,10))/1000,10);
   brightnessRange = Math.max(brightness1,brightness2) - Math.min(brightness1,brightness2);


   // get color difference
   diffRed = Math.max(col1['r'],col2['r']) - Math.min(col1['r'],col2['r']);
   diffGreen = Math.max(col1['g'],col2['g']) - Math.min(col1['g'],col2['g']);
   diffBlue = Math.max(col1['b'],col2['b']) - Math.min(col1['b'],col2['b']);

   colorDifference = parseInt(diffRed + diffGreen + diffBlue,10);

   if(brightnessRange <= 125 && colorDifference <= 500)
      return true;


   return false;


}

function HexToR(h) {return parseInt((cutHex(h)).substring(0,2),16)}
function HexToG(h) {return parseInt((cutHex(h)).substring(2,4),16)}
function HexToB(h) {return parseInt((cutHex(h)).substring(4,6),16)}
function cutHex(h) {return (h.charAt(0)=="#") ? h.substring(1,7):h}