[test] Add a palette contrast contract for the accessibility reports - #49049

Merged

michelengelen merged 5 commits into

michelengelen:a11y/contrast-contract

Aug 31, 2026

Commits on Aug 28, 2026

added color contrast contract and testing
michelengelen
committed
669884e
Classify WCAG thresholds on exact contrast ratios

michelengelen
and
claude
committed
1a30a4e
Rename the contract ratio fields to full pair names

michelengelen
and
claude
committed
e83078e
Keep contrast math in RGBA and quantize only at the hex boundary
JCQuintas
committed
7cbf811
Reject unresolvable typography instead of misclassifying the threshold
JCQuintas
committed
2040815