- White - signifies innocence, a student with no previous knowledge of Tae Kwon-Do
- Yellow - signifies earth, from which the metaphorical plant grows. The foundations of Tae Kwon-Do are being laid
- Green - signifies the plant's growth as skills begin to develop
- Blue - signifies heaven, towards which the plant is growing as training in Tae Kwon-do continues
- Red - signifies danger, cautioning the student to exercise control and warning the opponent to stay away
- Black - is opposite to white, signifying maturity and proficiency in Tae Kwon-Do
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