I'm a purple belt at Han Moo Do (bit like Taekwondo). The system is like this: White, Yellow, Green, Orange, Purple, Blue, Red, brown (1), brown (2), brown (3) and then black (1), black (2), black (3), black (4)... all the way up to 10. I did 44 in 30 seconds at school, i think i can do 100+ in a row... Gotta get it up though, i need to do 250 for black belt :D