- From: Patrick H. Lauke <redux@splintered.co.uk>
- Date: Sat, 11 Feb 2023 16:23:35 +0000
- To: w3c-wai-ig@w3.org
On 11/02/2023 15:55, Steve Green wrote: > WCAG does not have any requirements relating to dark mode. It requires > that authors publish web content that meets the success criteria. The > author has no responsibility if users apply alternative colour themes. Expanding on this, worth clarifying: * if a user has set their preference (in the OS or application) for dark mode, and content does not switch to a dark theme but shows its regular colour scheme, that's not a failure * if a user has set the preference for dark mode, and content does provide its own dark scheme (i.e. uisng @media (prefers-color-scheme: dark) in its CSS), *then* arguably authors are on the hook to make sure the colour combinations they have chosen have sufficient contrast * if a user has forced colours using something like Windows' high contrast themes (which override author styles), then any problems there are not the author's responsibility * jury is still out on whether or not authors are on the hook if they *also* defined their own custom forced colour styles (i.e. using @media (forced-colors: active)) - they can't actually define colours directly, but they *can* influence which system color combinations are being used (but not their contrast etc, so only allows for minor tweaks) See also https://github.com/w3c/wcag/issues?q=is%3Aissue+is%3Aopen+dark+theme+whcm P -- Patrick H. Lauke https://www.splintered.co.uk/ | https://github.com/patrickhlauke https://flickr.com/photos/redux/ | https://www.deviantart.com/redux twitter: @patrick_h_lauke | skype: patrick_h_lauke
Received on Saturday, 11 February 2023 16:23:51 UTC