I see, so you've got seven belts from white to black (including white and black.) In Gracie Jiu Jitsu its five belts from white to black, white, blue, purple, brown, black. It takes about two years to go up a belt although you do get stripes on your belt. You get up to four stripes per belt and after you get your fourth stripe, the next time you get promoted, you get your next belt.Iāve never seen stripes used in NGA (except BB). We use yellow, blue, green, purple, and brown. Each takes a bit longer to reach than the one before.