What WCAG 2.3.2 Requires
AAA only: content does not flash more than three times per second at all, with no exception for low-area flashes.
Can AccessBell Test This Automatically?
Not fully. Like most WCAG criteria that depend on meaning or context, this one needs a person to judge. AccessBell's report lists it for manual review rather than marking it pass or fail automatically, so it never gets missed.
How to Test It by Hand
Confirm no content flashes more than three times per second, regardless of size or contrast.
Common Failures
- A strobe-style animation effect is used for visual emphasis.
Related Criteria in Seizures and Physical Reactions
WCAG 2.3.2 Questions
What does WCAG 2.3.2 require?
AAA only: content does not flash more than three times per second at all, with no exception for low-area flashes.
Can AccessBell test WCAG 2.3.2 automatically?
Not fully. This criterion needs a person to judge, so AccessBell's report lists it for manual review rather than marking it pass or fail on its own.
What level is WCAG 2.3.2?
Level AAA, added in WCAG 2.0. Level AAA is the highest, most demanding conformance level in WCAG.
Sources
- W3C: Understanding 2.3.2 Three Flashes (opens in a new tab)
- W3C: Web Content Accessibility Guidelines (WCAG) 2.2 (opens in a new tab)
This page explains a technical standard and is not legal advice. See our disclaimer.