Success Criterion 1.2.4
Conformance level AA

Live Captions Unreadable Due to Overlap or Low Contrast

1.2.4 — Captions (Live)

Scenario

Setting

A survey tool's question builder

What’s wrong

Live captions visually unreadable: overlapping slides, low contrast, too fast to render.

Example

This shows up on a survey tool's question builder: live captions visually unreadable: overlapping slides, low contrast, too fast to render.

Why it matters

Deaf and hard-of-hearing participants in live streams, classes, and meetings. In this case (a survey tool's question builder), they are left guessing what the media actually shows.

How to test

Check caption legibility during the live event: overlapping slide content, low contrast, or text scrolling too fast to read all fail.

How to fix

Readable, reasonably accurate real-time captions must run for the entire live event.

Outcome

Once corrected, a survey tool's question builder lets them hear or read what the media conveys.

Who is affected

Deaf and hard-of-hearing participants in live streams, classes, and meetings.

Learn more

Understanding Understanding document (opens in a new tab)