Color-blindness simulation API

Simulates how a color appears under 7 color-vision deficiencies (protan/deutan/tritan -opia & -omaly, achromatopsia) via Viénot/Brettel LMS matrices; pass a type for one or omit for all. Answers 'How does this color look to a color-blind user?', 'Simulate deuteranopia for this color.'

Price$0.06per request

MethodPOST

Route/v1/design/color-blind-simulate

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

accessibilitycolor-blindnesscvdprotanopiadeuteranopiatritanopiasimulatea11ycolordesign

API URLhttps://x402.hexl.dev/v1/design/color-blind-simulate

Integration docs

Example request

{
  "color": "#ff6347",
  "type": "deuteranopia"
}

Example response

{
  "input": "#ff6347",
  "original": {
    "hex": "#ff6347",
    "rgb": {
      "r": 255,
      "g": 99,
      "b": 71
    },
    "hsl": {
      "h": 9.13,
      "s": 100,
      "l": 63.92
    }
  },
  "type": "deuteranopia",
  "simulated": {
    "hex": "#c5d04f",
    "rgb": {
      "r": 197,
      "g": 208,
      "b": 79
    },
    "hsl": {
      "h": 65.12,
      "s": 57.85,
      "l": 56.27
    }
  }
}

Input schema

{
  "type": "object",
  "required": [
    "color"
  ],
  "properties": {
    "color": {
      "type": "string",
      "examples": [
        "#ff6347"
      ]
    },
    "type": {
      "type": "string",
      "enum": [
        "protanopia",
        "protanomaly",
        "deuteranopia",
        "deuteranomaly",
        "tritanopia",
        "tritanomaly",
        "achromatopsia"
      ],
      "examples": [
        "deuteranopia"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}