1.4.3 / 1.4.11 Meeting contrast requirements via conforming alternate versions? about wcag HOT 4 CLOSED

On Apr 15, 2024, at 4:19 AM, Detlev Fischer ***@***.***> wrote: The question is (or seems) simple. Websites with text / graphics below the contrast requirements of 1.4.3 and 1.4.11 often offer contrast switches to load different styles that, after activation, increase contrast. I assume that the option to meet contrast requirements via activating a fully accessible contrast switch is considered by many as sufficient to meet 1.4.3 / 1.4.11 (provided the mechanism is fully accessible and the resulting contrast of content rendered in the alternate version meets the requirements). BUT: 5.2.1 Conformance level requires that one of the (...) levels of conformance is met in full, which means for AA: For Level AA conformance, the Web page satisfies all the Level A and Level AA Success Criteria, or a Level AA conforming alternate version is provided." This will often not be the case for a contrast switch that makes contrast conform but does not remedy other existing level AA lissues / FAILs of the page. Would this mean that a contrast switch can only be assumed to meet 1.4.3 / 1.4.11 if no other issues / FAILs remain (or those issues are miraculously remedied by the same switch)? Or is there a rationale besides "conforming alternate version" that would cover this contrast switch fallback practice? — Reply to this email directly, view it on GitHub <#3785>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACNGDXQIWC4DWSYXYYUJSWLY5OZVLAVCNFSM6AAAAABGHEUBDSVHI2DSMVQWIX3LMV43ASLTON2WKOZSGI2DGNBQG44TMNI>. You are receiving this because you are subscribed to this thread.