I'm proud to say I've sort of mastered the hex code for color. Yeah...I'm a geek, I suppose.

It's simple: the first two are red, the next two are green, the last two are blue. 0 means no color, f means full color. That's why 000000 is black and ffffff is white. It goes from f-a and then from 9-0. I didn't explain that very well, though.