Color Constancy
This page presents color constancy illusions, where shapes that appear to have significant color are really gray (or even the opposite color).
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The areas that appear reddish are actually blueish gray. |
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The areas that appear reddish are actually greenish. |
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The flowers that appear reddish are actually a blueish gray. |
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In this detail of the great rose window of the Reims cathedral, the parts that appear dark blue are actually a reddish gray |
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In this detail of the great rose window of the Reims cathedral, the parts that appear green are actually gray. |
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Through orange and green filters, in this stained glass panel by Theo van Doesburg the areas that appear blue are actually gray. |
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Through a green filter, in this stained glass panel by Theo van Doesburg the areas that appear red are actually gray. |
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Through a red filter, in this picture of the sign of El Paso's famous L&J Cafe, the areas that appear to be the greenest are actually gray (RGB 121,111,73). |
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In this picture of the Frontier Gas sign at Embudo, NM's Classical Gas Museum, the areas that appear to be red are actually gray (RGB 107,121,131). Thanks to @505Nomad for the original image. |