It was [resolved today to rename this function to `contrast-color()`](https://github.com/w3c/csswg-drafts/issues/7557#issuecomment-1203073680). So renaming this bug as well. (Also, the function got postponed to level 6 of the specificaction, though there is no draft yet so keeping it at level 5 for now.) Sebastian
Bug 1682439 Comment 3 Edit History
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It was [resolved today to rename this function to `contrast-color()`](https://github.com/w3c/csswg-drafts/issues/7557#issuecomment-1203073680). So renaming this bug as well. (Also, the function got postponed to level 6 of the specification, though there is no draft yet so keeping it at level 5 for now.) Sebastian