In judo what colour belt follows yellow?

There is not another color in most styles of Judo. Karate has different colors for some of the higher dan grades after black.

AnswerActually, the highest Judo rank is one which has never been awarded. 12th Dan. This is a double wide white belt. Double wide to distinguish it from the white belt of a beginner. The 12th Dan will have come full circle. Black belt (Dan) ranks start with black (1st - 5th). 6th - 8th also wear black belts, but may wear a red and white belt, but usually do so only for special occasions. Finally, traditional Judo ranks conclude with 9th and 10th Dan and that person wears a red belt. Not many 9th Dans have been awarded and only a handful of 10th Dans have been awarded by the home of Judo the Kodokan in Tokyo. However, countries other than Japan have their own national governing bodies and they may award rank as well. There are more 9th and 10th Dans awarded through these channels, but they are still EXTREMELY rare. A 12th Dan has never been awarded and it symbolizes perfection.

In Judo a student (Judoka) is measured against themselves as much or more than they are measured against others. A belt is most appropriate to hold the jacket closed, but also gives other players an idea of the skill level of the Judoka. Players of the same rank are presumed to be of the same general skill if they wear the same color belt.