Flag of Japan

Nisshōki (日章旗) · Hinomaru (日の丸)

CurrentSovereign stateISO JP · JPN

Variants & related flags

Flag of Japan
1999–present · national use
1870 pattern (still lawful)
1870–present · national use

Colours

Named in law; Ministry of Defense values

The colours are named in law, but no values are given there. The Acquisition, Technology & Logistics Agency, Ministry of Defense gives Munsell values, which are government guidance rather than law. The other figures are conventional values in wide use. Each value shows where it comes from, so you can choose the right level of certainty for your project.

ColourHEXRGBCMYKMunsell
紅色 (crimson)
#BC002D188 0 45—acrylic5.7R 3.7/15.5nylon6.2R 4.0/15.2Government guidance
HEX & RGB: Widely used approximation · Name from Act on National Flag and Anthem (Act No. 127 of 1999) — text as published by the Cabinet Office · Values from Defense Specification DSP Z 8701F: National flag (国旗)
白色 (white)
#FFFFFF255 255 2550 0 0 0acrylicN9.4nylonN9.2Government guidance
HEX, RGB & CMYK: Widely used approximation · Name from Act on National Flag and Anthem (Act No. 127 of 1999) — text as published by the Cabinet Office · Values from Defense Specification DSP Z 8701F: National flag (国旗)

Construction sheet

A red disc (日章) at the exact centre of a 2:3 white field.

Height : length
2 : 3
Disc diameter
3/5 of height
Disc centre
Centre of the flag

Sources: Act on National Flag and Anthem (Act No. 127 of 1999) — text as published by the Cabinet Office; 国旗及び国歌に関する法律 (Act on National Flag and Anthem): text in force, e-Gov law database

Sources

  1. Act on National Flag and Anthem (Act No. 127 of 1999) — text as published by the Cabinet Office. Cabinet Office, Government of Japan, 13 Aug 1999, in Japanese. Accessed 3 Oct 2026.
  2. 国旗及び国歌に関する法律 (Act on National Flag and Anthem): record in the e-Gov law database. Digital Agency of Japan (e-Gov), 13 Aug 1999, in Japanese. Accessed 3 Oct 2026.
  3. 国旗及び国歌に関する法律 (Act on National Flag and Anthem): text in force, e-Gov law database. Digital Agency of Japan (e-Gov), 13 Aug 1999, in Japanese. Accessed 3 Oct 2026.
  4. Defense Specification DSP Z 8701F: National flag (国旗). Acquisition, Technology & Logistics Agency, Ministry of Defense, 27 Nov 1973, in Japanese. Accessed 3 Oct 2026.