26.05.2014, 14:42
Last symbols are called ALPHA values. This is a HEX code and its colors are defined by RRGGBBAA. And what do you mean by get color? You want to store your color to the variable and then substract some amount from that or what?
0xRRGGBBAA
0xREDREDGREENGREENBLUEBLUEALPHAALPHA
0xRRGGBBAA
0xREDREDGREENGREENBLUEBLUEALPHAALPHA