Finland
What the source says
Referenced, awaiting primary-source reviewOfficially adopted on 28 May 1918. Blue represent[s] the country's thousands of lakes and the sky; white [represents] the snow that covers the land in winter. [The Nordic cross flag] was adopted following Finland's declaration of full independence in 1917.
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 blue Nordic cross offset toward the hoist on a white field, adopted in 1918 following Finland's declaration of independence from Russia.
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”.
- South Korea74
the same colours in similar amounts.
- Dominican Republic71
the same colours in similar amounts.
- Georgia70
similar colours in a different arrangement.
- Japan70
similar colours in a different arrangement.
- Uruguay70
near-identical colour proportions.
- Cyprus69
similar colours in a different arrangement.
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 Finland (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 Finland on Wikipedia