Test any colour pairing against WCAG AA and AAA, with the ratio and a clear pass or fail.
Check any pairing of text and background colour against the WCAG accessibility guidelines. You get the exact contrast ratio and a clear pass or fail for AA and AAA, at both normal and large text sizes.
AA is the common target for websites and covers most legal requirements. AAA is stricter and worth reaching for on long passages of reading. Large text counts as roughly 18.66px bold or 24px regular and above.
That's the whole list. A short note when there's something new worth your time. Leave whenever you like.
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