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# 2.3.2 Three Flashes

- Level: AAA
- Guideline: 2.3 Seizures and Physical Reactions
- Principle: 2 Operable

## What it is

Web pages do not contain anything that flashes more than three times in any one second period.

## How to test

- Check: Web pages do not contain anything that flashes more than three times in any one second period.
- Use the sufficient techniques below as acceptable methods when applicable.

## Sufficient techniques (W3C)

- G19: Ensuring that no component of the content flashes more than three times in any 1-second period

## Resources

- WCAG 2.2 SC: https://www.w3.org/TR/WCAG22/#three-flashes
- Understanding: https://www.w3.org/WAI/WCAG22/Understanding/three-flashes.html
- Quick reference: https://www.w3.org/WAI/WCAG22/quickref/?versions=2.2#three-flashes

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