Use the sliders to pick colors. The bottom right corner shows what color you have. After you finish see if they can find the guy. I will probably add more features and more backgrounds. Do not click on the circle on the bottom you won't be able to see what color you have.
This was based on the Mecca Chameleon game by lemorion_1224 on steam. Thanks to my brother @hudsonf11 for helping a little.