The belt color levels for Karate are from lowest to higher is; White, Yellow, Orange With Green Stripe, Orange With White Stripe, Orange With Red Stripe, Blue With Green Stripe, Blue With White Stripe, Blue With Red Stripe, Blue, Purple With Green Stripe, Purple With White Stripe, Purple With Red, Purple belt and more.
It will depend on the school or style of karate. In some styles, a purple belt is one of the levels on the way to black belt. My particular style of Shorin Ryu does not have a purple belt. It is not a common color.
'Kyu' are the ranks for color belts in karate. There are generally 10 kyu belts. White is the 10th kyu and brown belt the 1st kyu.
It will depend on the school or style of karate. In some styles, red belt is one of the levels on the way to black belt. In the Okinawan styles, a red belt indicates someone at the 9th or 10th Dan level, a Grandmaster.
A white belt
sorry to tell you but jb doesn't do karate. whoever told you this was lying but if he had a belt, it would probably be a yellow
A green belt in Karate is about mid-level. There are about 14 initial levels (Kups) and the Green Belt is a 6 Kup. There are seven Kups below it and at least six above it.