People are being racist what should I do?

There's this boy know being racist to all black people, and it hurts my feelings.He made up Jokes like; "Hey , have you ever played hide and seek in the dark?", I would answer yes. Then he would say; " Was it easy for people to find you? The worst I heard him say was; " Do you like spray paint?" I would reply yes. then he would say: " which color?" I said, Purple and Blue. He replies with " What about Black?"If I tell the teacher everybody would think I'm a tattle tale, and if I hold it back I'll feel like crying what should I do?