Color vision palette

Paste opaque sRGB HEX colors (#RGB or #RRGGBB), separated by commas, spaces or newlines. Up to 32 colors and 4096 characters. The table pairs every original with its simulated preview. Invalid input clears the complete preview instead of silently dropping colors.

Choose Original, Protan, Deutan or Tritan. The approximations use the published Machado, Oliveira and Fernandes linear-sRGB matrices at severity 1.0: decode sRGB, transform linear light, clip to the display gamut and encode sRGB again. The Tritan setting is the model’s strongest S-cone transformation, not an exact reconstruction of complete tritanopia. Individual vision, adaptation and displays vary.

Choose any two indexed colors to compare their original and preview luminance contrasts. The preview ratio is descriptive, not a WCAG pass/fail result or a measure of color distinguishability. For text accessibility assess the actual original foreground/background pair, and do not encode meaning by color alone. Use labels, shapes or patterns too. Equal/different colors or a high ratio do not certify a palette as accessible.

A design aid, not a diagnosis or a substitute for evaluation with people who have color-vision differences. No upload.

Click a HEX value to copy it. Color A is text, color B is background in the two samples. Your raw palette, simulation and selected pair stay in this browser; results and clipboard feedback are recomputed. Reset restores the example palette and first pair.