Flag of South Korea

Republic of Korea

Taegeukgi, Taegukgi
Use	National flag and ensign
Proportion	2:3
Adopted	January 27, 1883; 142 years ago (1883-01-27) (original version, used by the Joseon dynasty) June 29, 1942; 82 years ago (1942-06-29) (during Japanese occupation, by the exiled Provisional Government of the Republic of Korea) July 12, 1948; 76 years ago (1948-07-12) (for South Korea, by the Constituent National Assembly) October 15, 1949; 75 years ago (1949-10-15) (current geometry) May 30, 2011; 13 years ago (2011-05-30) (current colors)
Design	A white field with a centered red and blue taegeuk surrounded by four trigrams
Designed by	Lee Eung-jun (Designed) Pak Yŏnghyo (Selected) Gojong (Approved)
Naval jack
Use	Naval jack
Proportion	2:3
Design	A blue field with a white canton that has a red and blue taegeuk superimposed on two crossed anchors.
Governmental ensign
Use	Government ensign
Proportion	2:3
Design	A white field with the logo of the government in the middle

Flag of South Korea
Hangul	태극기
Hanja	太極旗
Revised Romanization	Taegeukgi
McCune–Reischauer	T'aegŭkki

The national flag of South Korea, also known as the Taegeukgi (Korean: 태극기; Hanja: 太極旗), consists of three components: a white rectangular background, a red and blue taegeuk in its center, accompanied by four black trigrams, one in each corner. The predecessors to the current Taegeukgi were used as the national flag of Korea by the Joseon dynasty, the Korean Empire, as well as the Korean government-in-exile during Japanese rule. South Korea adopted Taegeukgi for its national flag in 1948.