The flag of South Korea, or Taegeukgi, has three parts:
a white background, a red and blue taegeuk in the center, and four black trigrams, one in each corner of the flag. These trigrams are carried over from the eight trigrams (Bagua), which are of Taoist origin. Trigrams, and Taoism, which originated in China, are parts of the Korean Culture.
The white background is a traditional Korean color. It represents peace and purity. The circle in the middle is derived from the philosophy of yin and yang and represents the balance of the universe. The blue section represents the negative cosmic forces, and the red section represents the opposing positive cosmic forces. The trigram together represents the principle of movement and harmony. Each trigram (hangul: kwae) represents one of the four classical elements: Earth, Air, Fire, and Water.
Quick Kicks students study the Korean flag because Taekwondo comes from Korea