On 4/26/2019 10:12 AM, 'Cosmin Visan' via Everything List wrote:
And what I argue for in the book is that if you are to see only 2
colors, those 2 colors will always be yellow and blue, because yellow
will signify the very seeing of a color, while blue would be there to
contrast maximally with yellow.
https://nei.nih.gov/health/color_blindness/facts_about
Blue-yellow color blindness is rarer than red-green color blindness.
Blue-cone (tritan) photopigments are either missing or have limited
function.
Tritanomaly: People with tritanomaly have functionally limited blue cone
cells. Blue appears greener and it can be difficult to tell yellow and
red from pink. Tritanomaly is extremely rare. It is an autosomal
dominant disorder affecting males and females equally.
Tritanopia: People with tritanopia, also known as blue-yellow color
blindness, lack blue cone cells. Blue appears green and yellow appears
violet or light grey. Tritanopia is an extremely rare autosomal
recessive disorder affecting males and females equally.
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