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Vision Type
Normal Vision
Trichromatic - all 3 cone types
Protanopia
No L cones (red-blind) ~1% males
Deuteranopia
No M cones (green-blind) ~1% males
Tritanopia
No S cones (blue-blind) ~0.003%
Achromatopsia
No cones at all (total color blindness)
Ishihara
Spectrum
Nature
Traffic
Click anywhere to compare original vs simulated color