# colorblind

**Category:** 💻 Developer Tools  
**Repository:** https://github.com/vince-gonzalez/opticquiz.com  
**Views:** 0  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/colorblind

## Description
See a color or image as a colorblind person does; recolor images and make Ishihara plates.

## Claude Desktop Quick Installation
Heuristic fallback — verify the package name and runner against the repository README before running it. Uses `npx` (confidence: low):

```json
"mcpServers": {
  "colorblind": {
    "command": "npx",
    "args": ["-y","colorblind"]
  }
}
```

## Documentation & README

```
╔════════════════════════════════════════════════════════════════════════════════════════════╗
║                                                                                            ║
║              ██████╗ ██████╗ ████████╗██╗ ██████╗ ██████╗ ██╗   ██╗██╗███████╗             ║
║             ██╔═══██╗██╔══██╗╚══██╔══╝██║██╔════╝██╔═══██╗██║   ██║██║╚══███╔╝             ║
║             ██║   ██║██████╔╝   ██║   ██║██║     ██║   ██║██║   ██║██║  ███╔╝              ║
║             ██║   ██║██╔═══╝    ██║   ██║██║     ██║▄▄ ██║██║   ██║██║ ███╔╝               ║
║             ╚██████╔╝██║        ██║   ██║╚██████╗╚██████╔╝╚██████╔╝██║███████╗             ║
║              ╚═════╝ ╚═╝        ╚═╝   ╚═╝ ╚═════╝ ╚══▀▀═╝  ╚═════╝ ╚═╝╚══════╝             ║
║                                                                                            ║
║                 your eyes, tested in the browser, with nothing leaving it                  ║
║                                                                                            ║
╚════════════════════════════════════════════════════════════════════════════════════════════╝
```

[opticquiz.com](https://opticquiz.com) is a set of vision tests that run
entirely on the device. No account, no upload, no image ever sent anywhere -
the results exist in the tab and vanish with it.

## The tests

Colour vision, D-15 arrangement, hue discrimination, anomaloscope-style
matching, contrast sensitivity, acuity, astigmatism, Amsler grid, blind spot,
vernier alignment, flicker fusion, saturation, dominance and reaction.

A test on a web page cannot be a diagnosis: an uncalibrated display, ambient
light and viewing distance all move the result. Each test says so where it
reports, and points at an eye examination rather than standing in for one.

## Also in here

Translations (de, es, fr, hi, it, pt, zh), a browser extension, a VS Code
extension, a Figma plugin, an embeddable widget, and the research notes behind
the plate colours under `research/`.

---

```
╔════════════════════════════════════════════════════════════╗
║                                                            ║
║      ███████╗      ██╗  ██╗███████╗██╗   ██╗███████╗       ║
║      ██╔════╝      ██║ ██╔╝██╔════╝╚██╗ ██╔╝██╔════╝       ║
║      █████╗  █████╗█████╔╝ █████╗   ╚████╔╝ ███████╗       ║
║      ██╔══╝  ╚════╝██╔═██╗ ██╔══╝    ╚██╔╝  ╚════██║       ║
║      ██║           ██║  ██╗███████╗   ██║   ███████║       ║
║      ╚═╝           ╚═╝  ╚═╝╚══════╝   ╚═╝   ╚══════╝       ║
║                                                            ║
║               ·   C  R  E  A  T  I  V  E   ·               ║
║                                                            ║
║          ────────────────────────────────────────          ║
║                                                            ║
║                      Vincent Gonzalez                      ║
║                         f-keys.com                         ║
║                 ORCID 0009-0005-3640-014X                  ║
║                                                            ║
╚════════════════════════════════════════════════════════════╝
```

Part of [F-Keys](https://f-keys.com) — independent hardware, software
and internet products. See the [working log](https://f-keys.com/log/)
and [live status](https://f-keys.com/status/).