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conformance · v149

v149 · web-app-scope-system-accent-color — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://drafts.csswg.org/css-ui-4/#widget-accent chromestatus: #5106043975761920 generated 2026-06-01T08:15:14Z by conformance-author-v1-subagent
0
pass
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fail
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blocked
6
total
id contract kind verdict detail
accent-color-property-supported The accent-color CSS property is supported. spec ↗ css-supports
accent-color-auto-supported accent-color: auto is accepted (the value whose resolution differs in PWA vs tab). spec ↗ css-supports
accent-color-system-keyword-parses The AccentColor system colour parses in both tab and PWA contexts. spec ↗ css-supports
accent-color-text-system-keyword-parses AccentColorText system colour parses everywhere too. spec ↗ css-supports
display-mode-media-query-supported The display-mode media query is supported — distinguishes installed PWA from browser tab. spec ↗ script
system-accent-color-resolves-to-string Resolved value of color: AccentColor is a non-empty string in all contexts. spec ↗ script