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All languages have a word for the color blue.

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CONTESTED PARTIAL
Recorded sources
5 sources for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that all languages have a word for the color blue?

Partly. Several sources show individual languages (Bashkir, Italian, French, ancient Greek, Hebrew) have words for blue, while one survey reports distinct blue words are rare near the equator, implying some languages lack one. No source settles the universal claim across all languages.

Verdict: CONTESTED PARTIAL · 5 sources for, 2 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
Genesis, evolution and semantics of the color terms kük ‘blue’, zäŋgär ‘sky blue’, jäšel ‘green’ in the Bashkir language
2021
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Genesis, evolution and semantics of the color terms kük ‘blue’, zäŋgär ‘sky blue’, jäšel ‘green’ in the Bashkir language. (2021). doi.org. https://doi.org/10.17223/18137083/74/17

Evidence against · 2
Blue–green distinction in language
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Blue–green distinction in language. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Blue%E2%80%93green_distinction_in_language

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More for · 4
Could people perceive the color blue in ancient times?
2015
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Could people perceive the color blue in ancient times?. (2015). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/26918/could-people-perceive-the-color-blue-in-ancient-times

Language and color perception : the case of the Italian and French blue semantics : a contrastive analysis of linguistic categorizations and cognitive functions in monolingual and bilingual speakers
2022
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Language and color perception : the case of the Italian and French blue semantics : a contrastive analysis of linguistic categorizations and cognitive functions in monolingual and bilingual speakers. (2022). theses.hal.science. https://doi.org/10.70675/4ec327fbz873ez48c1z9dc9z3faada1a9694

Cultural unit blue in the Old Testament
2023
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Cultural unit blue in the Old Testament. (2023). doi.org. https://doi.org/10.1515/lass-2023-2001

From color naming to color perception: Cross‐linguistic differences of the chromatic information processing in monolingual and bilingual speakers
2024
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From color naming to color perception: Cross‐linguistic differences of the chromatic information processing in monolingual and bilingual speakers. (2024). hal.science. https://doi.org/10.1002/col.22955

More against · 1
Color and language: Worldwide distribution of Daltonism and distinct words for “blue”
2004
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Color and language: Worldwide distribution of Daltonism and distinct words for “blue”. (2004). doi.org. https://doi.org/10.1017/s0952523804213098

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held for human review18 Oct 2026
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