generates a palette with nearly 256 colors

palette

class Test {
    static function main() {
        
        var canvas=new flash.display.Sprite();
        flash.Lib.current.stage.addChild(canvas);
        var gfx=canvas.graphics;
        
        var x;
        var y;
        var c:Int;
        var i;
        
        var n=6;
        var size=4;
        var space=5;
        var nbCols=25;
        
        for(r in 0...n)
        {
            for(g in 0...n)
        	{
                for(b in 0...n)
        		{
                    i=r*25+g*5+b;
                    
        			x=i%nbCols*space;
            		y=Std.int(i/nbCols)*space;
           			var rr=Std.int(r*256/n);
                    
                    var gg=Std.int(g*256/n);
                    
                    var bb=Std.int(b*256/n);
            		
                    c=(rr<<16)+(gg<<8)+bb;
                    
            		gfx.beginFill(c);
            		gfx.drawRect(x,y,size,size);
            		gfx.endFill();
                }
             }
        }
    }
}