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conformance · v150

v150 · relative-alpha-colors-css-color-5-alpha-function — conformance probe

5 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://www.w3.org/TR/css-color-5/#the-alpha-function chromestatus: #5070160203481088 generated 2026-06-05T18:20:46Z by manual-codex
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id contract kind verdict detail
css-alpha-function-current-grammar The CSS alpha() function parses the current alpha(from <color> / <alpha-value>) grammar. spec ↗ css-supports
css-alpha-function-oklch-origin The alpha() function accepts an origin color function and replaces only its alpha channel. spec ↗ css-supports
css-alpha-function-currentcolor The alpha() function supports currentcolor as the origin color. spec ↗ css-supports
alpha-function-rejects-obsolete-comma-form The obsolete alpha(color, percentage) shorthand is not the CSS Color 5 grammar. spec ↗ script
alpha-function-resolves-to-transparent-red Setting alpha(from red / 50%) resolves to a transparent red color in computed style. spec ↗ script