Guinea
What the source says
Referenced, awaiting primary-source reviewAdopted on 10 November 1958. Red symbolizes the blood of anti-colonialist martyrs, the labor of the working classes, and the wish for progress; yellow represents Guinean gold, as well as the sun; green represents the country's vegetation. It uses the Pan-African colours, partly as a nod to the flag of Ghana, whose president was a close associate of Sekou Toure, the first Guinean president.
Referenced, not verified: a secondary work states this, and the document that constitutes the flag has not been read for this entry. What the marks mean.
Colors and meaning
Symbolism and history(r1)
A plain vertical red-yellow-green tricolor adopted in 1958, using the Pan-African colours partly as a nod to the flag of Ghana, whose president was a close associate of Guinea's first president Sékou Touré.
Most similar flags
The 6 closest of the 194 other national flags, ranked by a similarity index computed from the flag images themselves. The number is that index, 0–100 — not a claim that the two flags are “X% identical”.
- Mali91
the same vertical band layout; near-identical colour proportions.
- Senegal90
the same vertical band layout; near-identical colour proportions.
- Benin86
the same vertical band layout; near-identical colour proportions.
- Guinea-Bissau74
near-identical colour proportions.
- Saint Vincent and the Grenadines74
the same vertical band layout; the same colours in similar amounts.
- Belgium73
the same vertical band layout; the same colours in similar amounts.
Computed at build time: each flag is rasterised to 64x48, and the score is 0.55 × colour overlap + 0.45 × structure. A different weighting would rank these differently. How the index works.
References — not verification
(r1) Referenced to Flag of Guinea (Wikipedia (English)) on 2026-07-17. States the adoption year, which colors the flag has, what the colors mean and the symbolism and history on this page. The passage it states them in is quoted at the top of this entry.
Further reading: Flag of Guinea on Wikipedia