Base color

Model & settings

Anomaly severity 50%

Perceptual severity curve Multi-pass deep

Image simulation

Choose image

JPG/PNG (max 1200×1200). Simulated canvas next to original.

Research notes

Protanomaly is a partial reduction in L-cone sensitivity. Brettel and Viénot provide analytic LMS projections; the Machado-like blend allows smooth severity ramps. ΔE2000 is included for perceptual accuracy rather than geometric distance alone.

Swatches — Reference vs Protanomaly

Reference

HEX: — • RGB: — • xy: —

Protanomaly

HEX: — • RGB: — • xy: —

ΔE76

—

ΔE2000

—

Deep preview

Reference

Simulated

Chromaticity (CIE xy)

Confusion line

Protan anomaly reference point: —

Image simulation

Cone channel weights

L M S