Programs of Study | Heidelberg University

Events | Heidelberg University

Directory | Heidelberg University

Offices | Heidelberg University

News | Heidelberg University

Blog | Heidelberg University

American Junior Year Program in Germany | Heidelberg University

Login | Heidelberg University

Alumni | Heidelberg University

Student Life | Heidelberg University

To comply with WCAG AA, the colour of text must sufficiently contrast with
its background color, so that people with moderate visual impairments can read it.

The [contrast ratio](https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html#contrast-ratiodef) 
must be at least 4.5:1 for body text, and 3:1 for large text.

A much more demanding version of this check (1.4.6) exists for WCAG AAA. Ignoring an issue in this check 
will also ignore it in that check, and vice versa.

aa-text-contrast

January 2026

December 2025

Heidelberg University

Title / URL	Issues
Programs of Study \| Heidelberg Universitywww.heidelberg.edu/academics/programs	60
Events \| Heidelberg Universitywww.heidelberg.edu/events	57
Directory \| Heidelberg Universitywww.heidelberg.edu/directory	43
Offices \| Heidelberg Universitywww.heidelberg.edu/offices	29
News \| Heidelberg Universitywww.heidelberg.edu/news	25
Blog \| Heidelberg Universitywww.heidelberg.edu/blog	21
American Junior Year Program in Germany \| Heidelberg Universitywww.heidelberg.edu/american-junior-year	8
Login \| Heidelberg Universitywww.heidelberg.edu/login	7
Alumni \| Heidelberg Universitywww.heidelberg.edu/alumni	5
Student Life \| Heidelberg Universitywww.heidelberg.edu/student-life	4

Ensure text has sufficient contrast (AA)

Heidelberg University

Where this issue has occurred