# Color Oracle

Canonical URL: https://colorcurio.us/library/color-oracle
Source type: Library entry
Resource URL: https://colororacle.org/
Added: 2026-09-22

## Summary

A free desktop app that filters your whole screen through protan, deutan, or tritan vision.

The usual last check before a map palette ships.

- Resource: [Color Oracle](https://colororacle.org/)
- By: Bernhard Jenny & Nathaniel Kelso
- Kind: accessibility (tool)
- Level: beginner
- Tags: accessibility, cartography, data-viz, designer, scientist, interactive, desktop

## In collections

- [Cartography Essentials](https://colorcurio.us/library/collections/cartography-essentials)
- [Colorblind-Safe Workflows](https://colorcurio.us/library/collections/colorblind-safe-workflows)

[Back to the library](https://colorcurio.us/library)