Most people on this website will tell you to keep your wheels the way they are, me being one of them haha. purple might be ok, def no pink orange or green IMO. oh and just a warning, if you call them rims (which is actually just the outer portion of the entire wheel) instead of wheels, ull probably get some response like "rimzz yo!"
Another suggestion is that u might wanna try plastidip first, just to make sure u like the color. therefore if u dont, u can just peel it all off
plastidip is really easy to do by yourself... i wouldnt pay someone to do it for you