Kantetsu Ryu Karate Belt System

White Belt  10th Kyu Absence of knowledge, innocence in the art
Orange 9th kyu The dawning of new knowledge and the beginning of understanding
Green 8th kyu The growth of the student in the art
Blue 7th kyu The expansion of the student's mind to encompass the horizon
Purple 2 stripes 6th kyu The art is now a part of the student; it is beginning to be "in their blood."  The two stripes symbolize that the student is still a beginner in many respects, at times filled with doubt and uncertainty.
Purple 5th kyu The student is beginning to understand the significance of being a martial artist, realizing that their life's journey and entire perspective may be changed.
Brown (4 stripes) 4th kyu A return to the earth as the student seeks to solidify and stabilize their knowledge.  The four stripes symbolize the student is still very much a beginner and vulnerable to forces from all directions.
Brown (3 stripes) 3rd kyu The student has moved farther away from the mindset of a beginner and is beginning to forge mind, body and spirit into one.
Brown (2 stripes) 2nd kyu  The student continues to mature, yet still retains vestiges of immaturity in technique and understanding.
Brown  1st kyu The student is now deepening their understanding as the art is beginning to be rooted in them.
Black  Shodan

The color of void, an absence of pretensions. In time, if the student redoubles their efforts in training, after realizing that this is but the first step in a never ending journey, the belt (obi) will eventually return to white.  This symbolizes a return to the innocence of a beginner, indicating that one's journey in the martial arts is not from one point or goal to another; rather it is a circle that inevitably leads back to the beginning of understanding and truth.