Yellow symbolizes that the student, likened to a seed, is beginning to see the sunlight.
Green represents the seedling just beginning to grow.
Blue designates the young plant growing and reaching for the sky.
Red indicates danger, student has good technical knowledge which can be dangerous since he or she still lacks control and discipline.
Black symbolizes the coming together of all the color belts and the nine grades of knowledge to form a degree. The student is approaching the beginning of Tae Kwon Do master.