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Color Blindness Simulator
x402
Color Blindness Simulator is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Simulates how a color appears to viewers with protanopia, deuteranopia, or tritanopia, returning the simulated RGB value and optional contrast ratio against a second color.
Price / call$0.001
Success—
StatusUnknown
How this service works
Simulate how a color appears to viewers with protanopia (red-blind), deuteranopia (green-blind), or tritanopia (blue-blind) — the three dichromacy types covering ~8% of men and ~0.5% of women. Returns the simulated RGB plus the contrast ratio agai...
Output
Returns the simulated RGB color value for the given color as perceived under the specified dichromacy type (protanopia, deuteranopia, or tritanopia), and if a second color is provided, also returns the simulated RGB for that color and the contrast ratio between the two simulated colors.
Example use cases
Example prompt
“Simulate how the color #E63946 appears to someone with protanopia, and also compare it against #457B9D so I can see the contrast ratio between the two as a color-blind viewer would experience it.”
Technical details
Endpoint
POSThttps://agent402.tools/api/color-blindnessWhen to prefer
Use this endpoint when you need to simulate how specific colors appear to users with one of the three dichromacy types (protanopia, deuteranopia, tritanopia) and optionally compute contrast ratios between a color pair as perceived by color-blind viewers — ideal for accessibility audits and UI/UX design validation.
Side effects
- Invalid color string format returns an error
- Unsupported color blindness type not recognized
- Missing required color field returns validation error
- Payment not attached or insufficient USDC returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| color | string | Color to simulate. |
| compareTo | string | Optional second color - both are simulated and the contrast ratio between the simulated pair is included. |
Output
Schema · Response
{
"type": "json",
"example": {
"input": "#1d4ed8",
"compareTo": "#22c55e",
"simulations": {
"protanopia": {
"hex": "#3f3fcb",
"originalContrast": 1.93,
"simulatedContrast": 5.42
},
"tritanopia": {
"hex": "#2050a4",
"originalContrast": 1.93,
"simulatedContrast": 1.41
},
"deuteranopia": {
"hex": "#494bcb",
"originalContrast": 1.93,
"simulatedContrast": 4.12
}
}
}
}Tags
x402
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