Black, 50% gray, and white. Like some of Paddy's awesome pieces. o:
Since the contrast is so high, and the color count is so low, it's hard to tell what's going on at places. I still like it and thought it was good enough to upload. :)

Why not enter my 3 color skin contest? These skins are super fun to make, and the thread is here: http://www.planetminecraft.com/forums/color-skin-contest-t477594.html