Re: Color contrast below 4.5:1 in subset of browsers and devices - WCAG pass or fail?

This sounds like the :read-only and :read-write selectors here are 
"relied upon" https://www.w3.org/TR/WCAG21/#dfn-relied-upon (when 
they're not supported, contrast fails).

While the normative definition of "accessibility supported" 
https://www.w3.org/TR/WCAG21/#dfn-accessibility-supported indeed talks 
about AT and accessibility features in browsers/UAs, I'd say at least in 
the spirit of that definition I'd also include using/relying on web 
technologies that have widespread browser support, unless you know for a 
fact that end users won't actually be using Firefox or IE (e.g. if it's 
in a closed/controlled environment).

A very strict reading of WCAG would, to me, suggest this is not a hard 
failure of 1.4.3, but in an audit (if discovered) I'd certainly at the 
very least flag it as a very strong best practice recommendation to fix it.

P
-- 
Patrick H. Lauke

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Received on Tuesday, 28 May 2019 16:04:47 UTC