Home▸Colours & Light▸Colour Vision Simulator (2D)

👁️ Colour Vision Simulator (2D)

A 2D Canvas simulator of human trichromatic colour vision and colour-blindness. Apply real LMS cone-response math (Hunt-Pointer-Estevez / Brettel-style dichromat transform) to palettes and test patterns for protanopia, deuteranopia and tritanopia, with an adjustable severity slider.

Colours & Light2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

A 2D Canvas simulator of human trichromatic colour vision and colour-blindness. Compare a normal-vision view side-by-side with a live protanopia, deuteranopia, tritanopia or achromatopsia simulation, driven by real LMS cone-response math and an adjustable severity slider, across colour palettes, an Ishihara-style plate, a colour wheel and a spectrum strip.

colour-visioncolour-blindnessconesLMSprotanopiadeuteranopia

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install