The opposite of white, there for signifying a maturity and proficiency in Tae Kwon Do. It also indicates the holder's imperviousness to darkness and fear

Meaning of White White Signifies innocence, as that of a beginning student who has no previous knowledge of Taekwon-Do

Meaning of Yellow Yellow Signifies the Earth from which a plant sprouts and takes root as the Taekwon-Do foundation is being laid

Meaning of Green Green Signifies the plant's growth as the Taekwon-Do skill begins to develop

Meaning of Blue Blue Signifies the Heaven, towards which the plant matures into a towering tree as training in Taekwon-Do progresses

Meaning of Red Red Signifies danger, cautioning the student to exercise control and warning the opponent to stay away