The Central African Republic’s flag (1 December 1958), designed by Barthélemy Boganda, combines four horizontal bands—blue, white, green, yellow—with a vertical red stripe through the centre and a yellow five‑pointed star in the upper hoist. The scheme symbolises the union of Africa and Europe and the blood that binds the nation. Ratio commonly 3:5; specifications and protocol are established by law.
Proclaimed on 1 December 1958 for the autonomous Central African Republic within the French Community, and retained at independence in 1960, the national flag unites colours and orientations in a distinctive composition. Four equal horizontal bands—blue, white, green, yellow—are crossed by a vertical red stripe centred from top to bottom. A yellow five‑pointed star appears in the canton on the blue band.
Boganda’s rationale placed the red stripe as the blood that binds; blue and white referenced Europe, green and yellow Africa—together expressing cooperation and unity. The star symbolises independence and aspiration. The unusual crossing of horizontal and vertical elements yields instant recognisability among world flags.
A typical ratio of 3:5 is used in practice; colour references, the width of the vertical stripe, and the star’s size and placement are specified in guidance to ensure consistent manufacture. Protocol prescribes precedence, half‑masting, nocturnal illumination, and dignified retirement. Misuse is penalised.
The design has remained stable. Presidential and military standards derive from the civil flag with added devices. Civic education emphasises the meaning of each colour and the unifying red band.