{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-06-03T00:29:35.903Z","discovery":{"catalog":"https://toptool.io/tools.json","llmsTxt":"https://toptool.io/llms.txt","sitemap":"https://toptool.io/sitemap.xml"},"relatedTools":[{"slug":"wcag-contrast-checker","name":"WCAG Contrast Checker","url":"https://toptool.io/wcag-contrast-checker"},{"slug":"color-converter","name":"Color Converter","url":"https://toptool.io/color-converter"},{"slug":"complementary-color","name":"Complementary Color Generator","url":"https://toptool.io/complementary-color"},{"slug":"triadic-colors","name":"Triadic Colors Generator","url":"https://toptool.io/triadic-colors"},{"slug":"analogous-colors","name":"Analogous Colors Generator","url":"https://toptool.io/analogous-colors"},{"slug":"shade-tint-generator","name":"Shade & Tint Generator","url":"https://toptool.io/shade-tint-generator"},{"slug":"random-color","name":"Random Color Generator","url":"https://toptool.io/random-color"},{"slug":"gradient-generator","name":"CSS Gradient Generator","url":"https://toptool.io/gradient-generator"}],"kind":"utility","slug":"color-blindness-simulator","name":"Color Blindness Simulator","description":"Simulate how any color looks to people with color blindness — protanopia, deuteranopia and tritanopia.","longDescription":"Enter any color (hex, RGB, HSL, or CSS name) to instantly see how it appears to people with the three main types of color vision deficiency: protanopia (red-blind, ~1% of males), deuteranopia (green-blind, ~1% of males), and tritanopia (blue-blind, ~0.003% of population). Uses Brettel/Viénot/Mollon color transformation matrices applied in linearized sRGB space for accurate simulation. Essential for web designers and developers ensuring WCAG accessibility, UI/UX professionals, graphic designers, and anyone building inclusive color palettes. All processing runs locally in your browser — the color never leaves your machine.","category":"color","categoryName":"Color","keywords":["color blindness simulator","color blind simulator","colorblind test","protanopia simulator","deuteranopia simulator","tritanopia simulator","color vision deficiency","accessibility color checker","color blind safe","wcag color accessibility","color blindness tool","cvd simulator","color blind friendly","color accessibility"],"badge":"Simulator","url":"https://toptool.io/color-blindness-simulator","inputs":[{"type":"text","key":"color","label":"Color","placeholder":"#3b82f6 or rgb(59, 130, 246) or cornflowerblue","defaultValue":"#e74c3c","monospace":true,"help":"Enter a color in hex (#RRGGBB), rgb(), hsl(), or CSS name format."}],"outputs":[{"key":"original","label":"Original"},{"key":"protanopia","label":"Protanopia (red-blind)"},{"key":"deuteranopia","label":"Deuteranopia (green-blind)"},{"key":"tritanopia","label":"Tritanopia (blue-blind)"},{"key":"summary","label":"Summary","multiline":true}],"invocation":{"webUi":"https://toptool.io/color-blindness-simulator","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}