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68
Mostly True

The text claims that the color seen when closing our eyes is called eigengrau and is different from black.

Both claims about 'eigengrau' are supported by multiple sources stating that eigengrau is a dark gray color perceived in total darkness, caused by spontaneous retinal activity. This phenomenon is distinct from pure black. Medium-reliability sources corroborate this information, indicating a consensus among various scientific explanations.

March 26, 2026 Language: en 2 claims analyzed

Individual Claims

68
Mostly True science
The colour seen when we close our eyes is called eigengrau.
Multiple sources, including IFLScience and Wikipedia, confirm that the color termed 'eigengrau' is the dark gray perceived in darkness due to biological retinal activity. These consistent sources support the claim.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 80
Web Consensus Weight 50
Source Quality Score 60
Source Quality Weight 25
Llm Reasoning Score 70
Llm Reasoning Weight 25
Weighted Total 68
Evidence Summary 3 web sources confirm eigengrau as a dark gray color seen in darkness.
68
Mostly True science
Eigengrau is different from black.
Sources such as The Economic Times and Wikipedia establish that eigengrau is not pure black but a visual perception of dark gray, distinct from black due to the brain's interpretation of visual noise.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 80
Web Consensus Weight 50
Source Quality Score 60
Source Quality Weight 25
Llm Reasoning Score 70
Llm Reasoning Weight 25
Weighted Total 68
Evidence Summary 3 web sources confirm eigengrau as gray, not black.

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