Flag of South Korea

Republic of Korea

Taegeukgi / Taegukgi (Korean: 태극기, Hanja: 太極旗)
Use	National flag and ensign
Proportion	2:3
Adopted	January 27, 1883; 141 years ago (1883-01-27) (original version, used by the Joseon dynasty) June 29, 1942; 81 years ago (1942-06-29) (during Japanese occupation, by the exiled Provisional Government of the Republic of Korea) October 15, 1949; 74 years ago (1949-10-15) (for South Korea, by the first Republic of Korea, current geometry)[1] May 30, 2011; 12 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 and Ma Jianzhong (Designed) Park Yung-hyo (Selected) Gojong (Approved)
Naval jack
Use	Naval jack
Proportion	2:3
Design	A Blue Ensign with a white canton that has a red and blue taegeuk superimposed in the center of the canton, with two anchors crossing.
Governmental ensign
Use	Government ensign
Proportion	2:3

The national flag of the Republic of Korea, also known as the Taegeukgi (also romanized as Taegukgi, Korean: 태극기; lit. taegeuk flag), has three parts: a white rectangular background, a red and blue taegeuk in its center, accompanied by four black trigrams, one in each corner. Flags similar 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 the Taegeukgi for its national flag when it gained independence from Japan on 15 August 1945.