The South Korean flag has a white base with a circle in the centre. The circle is blue and red in colour, and the colours are divided according to the Yin-Yang shape.
The circle is surrounded by four black trigrams, one in each corner of the flag.
The flag’s base is white, which is the traditional colour of the Korean people and symbolises peace and harmony. The circle emblem in the centre of the flag represent the dual forces of yin (blue) and yang (red).
This circle is indicative of harmonious living by complementary opposites like positive and negative, active and passive, night and day etc. Yin represents the passive mode and yang the active.
The four trigrams at the corners of the flag represent the elements of heaven (Kun), Fire (Yi), water (Kam) and earth (Kon)
The Republic of Korea was formed in August, 1948 and the current South Korean flag was adopted on January 25, 1950.