229676 2021-08-30 11:06:24 -0700 `color-contrast()` not working with system colors 2024-08-29 10:56:18 -0700 1 1 1 Unclassified WebKit CSS Safari Technology Preview Unspecified Unspecified RESOLVED WONTFIX InRadar P2 Normal --- 1 argyle webkit-unassigned akeerthi ntim sam simon.fraser timothy webkit-bug-importer oldest_to_newest 1788578 0 argyle 2021-08-30 11:06:24 -0700 Looks like system colors don't work as a value to be compared against. Reduced test case here: https://cdpn.io/argyleink/debug/bbaf6bf6aa72419da3bd53f5eee85329 Maybe system colors also aren't potential candidates in the list of valid comparison colors either? 1788744 1 akeerthi 2021-08-30 17:30:59 -0700 See also: https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/css/parser/CSSPropertyParserHelpers.cpp#L1368 ``` // FIXME: We don't have enough context in the parser to resolving a system keyword // correctly. We should package up the relative color parameters and resolve the // whole thing at the appropriate time when the origin color is a system keyword. ``` 1790743 2 webkit-bug-importer 2021-09-06 11:07:16 -0700 <rdar://problem/82797037> 2056307 3 ntim 2024-08-29 10:56:18 -0700 We're removing color-contrast in bug 278864