var red:int = 255;
var green:int = 254;
var blue:int = 253;
private function _getHexStringFromRGB($red, $green, $blue):String {
var num:Number = ($red << 16) + ($green << 8) + $blue;
return "0x" + num.toString(16).toUpperCase();
}
trace(getHexStringFromRGB(red, green, blue);
Bitwise shift