Capital

Seoul

Continent

Asia

Flag adopted

1948

Designer

Not individually credited

South Korea

Colors and meaning

• White #FFFFFF

  Peace and purity, a color deeply tied to traditional Korean dress and culture

• Red #C60C30

  The positive cosmic force, yang

• Blue #003478

  The negative cosmic force, yin

Symbolism and history

A red-and-blue taegeuk circle, representing the balance of yin and yang, sits at the center of a white field surrounded by four black trigrams (Geon, Gon, Gam and Ri) drawn from the ancient Chinese I Ching, adopted formally in 1948.

Closest-looking flags

• 

  North Korea

  The taegeuk circle echoes the disc at the center of North Korea's flag, both tracing to shared pre-division Korean symbolism, though only the South retains the philosophical trigrams.

Further reading: Flag of South Korea on Wikipedia