30

Color Vision — Deficiencies & Simulations

Simulations of color vision deficiencies from protan, deutan, and tritan types to complete achromatopsia.

Protanomaly

Reduced red cone sensitivity causing mild red-green discrimination difficulty.

Simulate Protanomaly
  • Shifted red sensitivity
  • Mild red-green confusion
  • Anomalous trichromacy

Deuteranopia

Complete absence of green cone photoreceptors causing red-green confusion.

Simulate Deuteranopia
  • No green cone function
  • Red-green confusion
  • Most common dichromacy

Deuteranomaly

Reduced green cone sensitivity — the most common form of color vision deficiency.

Simulate Deuteranomaly
  • Shifted green sensitivity
  • Mild red-green confusion
  • Most prevalent CVD

Tritanopia

Complete absence of blue cone photoreceptors causing blue-yellow confusion.

Simulate Tritanopia
  • No blue cone function
  • Blue-yellow confusion
  • Rare dichromacy

Tritanomaly

Reduced blue cone sensitivity causing mild blue-yellow discrimination difficulty.

Simulate Tritanomaly
  • Shifted blue sensitivity
  • Mild blue-yellow confusion
  • Anomalous trichromacy

Achromatopsia

Complete color blindness — absence of all cone function resulting in grayscale vision.

Simulate Achromatopsia
  • No color perception
  • Rod-only vision
  • Extreme photophobia

Color Inversion

Full spectral inversion of perceived colors — a perceptual simulation tool.

Simulate Color Inversion
  • Inverted hue mapping
  • Complementary swap
  • Diagnostic utility

Grayscale

Complete desaturation rendering all colors as luminance-only grayscale values.

Simulate Grayscale
  • Luminance only
  • Zero saturation
  • Contrast analysis

Featured Simulations

Selected deficiencies from the color vision collection.

Protan Deficiencies

Protanopia and protanomaly — red cone absence or reduced sensitivity.

Deutan Deficiencies

Deuteranopia and deuteranomaly — the most common color vision deficiencies.

Tritan & Monochromacy

Tritanopia, tritanomaly, and achromatopsia — blue-yellow and total color loss.

Explore Color Vision Simulations

Experience how color vision deficiencies alter the perception of the visual world.

Browse Color Vision