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Re: High Contrast mode

for

From: Detlev Fischer
Date: Mar 6, 2025 3:47AM

Am 06.03.2025 um 06:34 schrieb Steve Green via WebAIM-Forum:
> WCAG does not have any success criteria that require websites to be usable with High Contrast mode. However, EN 301 549 does, which will be relevant if you work on anything where the EU Website Accessibility Directive or European Accessibility Act apply.
Not sure there is a specific requirement for that. 11.7 User preferences
in EN 301 549 requires that the "user interface shall follow the values
of the user preferences for platform settings..."
But it also says in Note 2 of 11.7: "For web content, the underlying
platform is the user agent."

Or are you looking at another requirement that I am missing?

Also, it is worth noting that the next version of EN 301 549 seems to
drop the 11.7 requirement for web content (at least in terms of
interpreting the EN for the Web Accessibility Directive 2016/2102 - see
the new Annex ZA).

--
Detlev Fischer
IAAP Web Accessibility Specialist (WAS)
DIAS GmbH (Testkreis is now part of DIAS GmbH)

Mobil +49 (0)157 57 57 57 45

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