# WCAG 2.2 – 1.4.1 Use of Color

- Level: A
- Principle: 1 Perceivable
- Guideline: 1.4 Distinguishable
- Introduced in: WCAG 2.0

## What the rule requires

Colour is never the only way to convey something. About one in twelve men has difficulty telling red from green.

## How to get it right

Add text, an icon or a pattern to colour: error field with red border AND icon AND text “Error: …”. Underline links in running text.

## Who benefits

- People with colour vision deficiency
- People with low vision

## Sources

- [This rule on wcag.dehl.net](https://wcag.dehl.net/en/wcag/1-4-1/)
- [Interactive demo](https://wcag.dehl.net/en/demos/#vision)
- [Official W3C explanation](https://www.w3.org/WAI/WCAG22/Understanding/use-of-color)
- [Techniques (WCAG Quick Reference)](https://www.w3.org/WAI/WCAG22/quickref/#use-of-color)

_Plain-language explanation. Only the original W3C text is normative._