What's my JND? – a colour guessing game
https://www.keithcirkel.co.uk/too-much-color/
In plain words
What's my JND? is a color guessing game that challenges players to identify subtle differences between similar colors. The game is designed for anyone interested in testing their color perception abilities. It focuses on JND (just noticeable difference), the threshold at which the human eye can detect variations in color, making it an interactive way to explore the limits of color discrimination.
written from the facts on this page · September 2026
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