Unlike other martial arts where a Black Belt marks a person’s proficiency in a style, in Jiu-Jitsu the rank of Black Belt is conferred to individuals who have mastered the art of Brazilian Jiu-Jitsu. The belts in order are: White, Blue, Purple, Brown and Black. White through Brown belts awarded four stripes. The ranks for children are different. Blue belt and higher ranks have age requirements so children have the following ranks beginning with White, Yellow, Orange and Green, each belt has 4 stripes.
Brazilian Jiu Jitsu is famous for its informality and conservatism in regards to promoting students to a higher grade. This is largely due to the type of martial art that it is and the style that is used to teach it. There are few specific set “rules” about what a student should know before promotion occurs, and it is generally up to the instructor to decide if the student is ready for advancement.