[BigDan]

var r:Number = 0;
var g:Number = 0;
var b:Number = 0;
var result:String;
onEnterFrame = function(){
 if(r < 255){
   ++r;
 }else{
   delete this.onEnterFrame;
 }
 result = "0x"+r.toString(16)+g.toString(16)+b.toString(16);
}

+TextFormat.color