2. OperableLevel A
2.3.1 Three Flashes or Below Threshold
3회 섬광 또는 임계값 이하
Summary
Nothing may flash more than three times per second. Unlike most criteria, a failure here risks physical harm — photosensitive seizures — not just inconvenience. The rate threshold is the same for red, but saturated red counts as a flash more readily.
Common failures
- Rapid flashing in a promotional effect or an autoplaying video.
Corresponding KWCAG 2.2 items
- 6.3.1 Limited Use of Flashing