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No. 043 / 195Flag of Czech Republic
Capital
Prague
Continent
Europe
Flag adopted
1920(r1)
Designer
Not individually credited

Czech Republic

What the source says

Referenced, awaiting primary-source review
Originally adopted 30 March 1920. White [is] the traditional color of Bohemia and represents the sky; red symbolizes Moravia and the bloodshed for the freedom of the state; blue [was] used to symbolize Slovakia, but now symbolizes impartiality and sovereignty. [The white-over-red] was almost identical to the flag of Poland, so a blue triangle was added at the hoist in 1920. Upon the dissolution of Czechoslovakia in December 1992, the Czech Republic kept the Czechoslovak flag.
(r1) Flag of the Czech Republic (Wikipedia (English)), read 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.

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

  • Red(r1) #D7141A

    Moravia, and the bloodshed for the freedom of the state(r1)

  • White(r1) #FFFFFF

    The traditional colour of Bohemia, and the sky(r1)

  • Blue(r1) #11457E

    Once a symbol of Slovakia, now of impartiality and sovereignty; the triangle was added in 1920 because the plain white-over-red was almost identical to Poland's flag(r1)

Symbolism and history(r1)

A blue hoist triangle points into a white-over-red bicolor; upon the 1993 dissolution of Czechoslovakia the Czech Republic kept the Czechoslovak flag.

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”.

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

Further reading: Flag of the Czech Republic on Wikipedia

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