The national flag of South Korea, also known as Taegeukgi, is a symbol of the country's identity and values. It consists of a white background with a large black Taegeuk symbol in the center, divided into two equal halves by a circular line. The Taegeuk symbol represents the concept of yin and yang, the dual forces that are believed to make up the universe.

The white background of the flag signifies purity and peace, while the Taegeuk symbolizes harmony and balance. The circular line dividing the two halves represents the unity between these opposing forces. The red and blue colors in the Taegeuk symbol stand for active masculine principles (red) and passive feminine principles (blue), respectively.

The proportions of the flag are 2:3, with each half being divided into two smaller rectangles. The Taegeuk is placed exactly in the center of the flag, creating a symmetrical design that reflects South Korea's commitment to balance and harmony.

Taegeukgi was officially adopted as South Korea's national flag on October 18, 1945, shortly after the end of World War II and Japan's occupation of Korea. It was designed by Nam Jun Paik, a prominent artist at the time. The flag has since become an important symbol of national pride and identity for South Koreans.