Belt Ranks are earned through consistency and improvement in Brazilian Jiu Jitsu. Children ages 4-15 use a different belt system then adults 16 and up. The Ranks are as follow.
Children: White, Grey/White, Grey, Grey/Black, Yellow/White, Yellow, Yellow/Black, Orange/White, Orange, Orange/Black, Green/White, Green, Green/Black
Adults: White, Blue, Purple, Brown, Black