Flag of South Korea

What the flag of South Korea looks like

The flag of South Korea has a white rectangle with a ratio of 2:3. In the center is a circle, the taegeuk, divided by an S-shaped curve into a red half on top and a blue half at the bottom. Around it, one in each corner, are four black trigrams, each made of three bars that are either solid or broken in the middle.

The four trigrams are placed as follows:

• Top left: three solid bars, geon (heaven).
• Bottom right: three broken bars, gon (earth).
• Top right: broken, solid, broken bars, gam (water).
• Bottom left: solid, broken, solid bars, ri (fire).

The trigrams come from the older set of eight trigrams used in the Chinese I Ching (Book of Changes), and the flag uses four of them. The flag's design is described in detail by Korean law, including the exact size of the circle and the placement of the trigrams. The design also appears in the South Korea flag emoji.

South Korean flag meaning and symbolism

The flag is based on East Asian philosophy. The white background stands for peace and purity, and the long tradition of white clothing in Korea. The taegeuk in the center represents the balance of opposing forces in the universe: red is the positive, active force (yang), and blue is the negative, passive force (yin). Together they show that harmony comes from the interaction of opposites, and that everything in nature is in constant motion.

The four trigrams are often said to represent heaven, earth, fire and water. Together, the trigrams represent movement and harmony as fundamental principles. Further traditional readings exist, but they are not part of the flag's official definition.

The overall idea of the flag is that the nation is part of the cosmos and follows its principles of balance and change. This is why people often say the Korean flag is a flag of philosophy, not of heraldry.

History of the South Korean flag

The earliest versions of the taegeuk flag were designed in the early 1880s, when Korea (then ruled by the Joseon dynasty) needed a national flag for diplomatic missions. A version with the taegeuk and trigrams was used in 1882, and King Gojong proclaimed a version as the national flag in January 1883. The flag was used until Japan annexed Korea in 1910.

During Japanese rule the flag became a symbol of resistance. It became a powerful symbol of independence in the demonstrations of the period, including the March 1st Movement of 1919, and a flag similar to the current one was used by the Korean government in exile in China.

After the end of Japanese rule in 1945 and the division of Korea, the Constituent National Assembly adopted the Taegukgi as the national flag on 12 July 1948, shortly before the Republic of Korea was established. A committee set up in January 1949 worked on standardizing the design, and the National Flag Production Law was announced in October 1949. Exact dimensions were codified in 1984, and the colors were fixed by presidential decree in 1997. North Korea, which had also used the Taegukgi at first, adopted a different design in 1948.

North and South Korea flags

Do North and South Korea have different flags? Yes. North Korea uses a red flag with a white-edged blue stripe at the top and bottom and a red star in a white disk. South Korea kept the older Taegukgi. For events where both teams take part together, such as some sports competitions, a separate unification flag has been used: white, with a blue silhouette of the whole Korean peninsula.

Since the Korean War ended with an armistice in 1953 and not a peace treaty, the two states remain technically at war, which is why the question of which flag represents Korea is more than a design question.