Color vision is driven by three cone types (L/M/S). Each can be absent or weak, yielding six canonical dichromat + anomalous-trichromat combinations. Add achromatopsia + achromatomaly for eight CVDs covering virtually every real-world case.

Machado, Oliveira & Fernandes (2009, IEEE TVCG) validated these matrices against real color-discrimination studies — the current academic standard.

Web palette audits, presentation chart colors, game UI indicators, road-sign / warning-color design, any WCAG-aware product work.

~200 ms for 4K images. 3×3 matrix multiply per pixel; runs sequentially yielding to the event loop.

Preview how your image looks under 8 color-vision deficiencies using Machado-2009 matrices

Color Blindness Simulator (8 CVD types)

See how your visual reads to CVD users in one drop. The eight Machado-2009 transforms run in parallel so you can audit a whole palette or infographic in a single glance.

Kurzantwort

Run one image through all 8 color-vision deficiencies (P/D/T × opia/omaly + achromatopsia + achromatomaly) using Machado-2009 matrices. Fully in-browser.

Eckdaten

CVD types: 8 (P/D/T × opia/omaly + 2 achromat)
Matrices: Machado, Oliveira & Fernandes (2009)
Runtime: ~200 ms (4K)
Output: PNG per variant
Processing: Runs in your browser

Gut für

Web palette accessibility audits
Chart + presentation color checks
Game UI & warning-color legibility

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Anleitung

Drag & drop an image
Click "Start" — all eight variants render in parallel
Scan the grid for information colors that collapse into each other
Download any variant to share with your design team

Häufige Fragen

Why eight variants?: Color vision is driven by three cone types (L/M/S). Each can be absent or weak, yielding six canonical dichromat + anomalous-trichromat combinations. Add achromatopsia + achromatomaly for eight CVDs covering virtually every real-world case.
How accurate?: Machado, Oliveira & Fernandes (2009, IEEE TVCG) validated these matrices against real color-discrimination studies — the current academic standard.
When do I use this?: Web palette audits, presentation chart colors, game UI indicators, road-sign / warning-color design, any WCAG-aware product work.
How fast?: ~200 ms for 4K images. 3×3 matrix multiply per pixel; runs sequentially yielding to the event loop.

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Color Blindness Simulator (8 CVD types)

Kurzantwort

Eckdaten

Gut für

Anleitung

Häufige Fragen

Verwandte Tools

Color Blindness Simulator (8 CVD types)

Kurzantwort

Eckdaten

Gut für

Anleitung

Häufige Fragen

Verwandte Tools