contrast-color() ships in Safari Technology Preview

When I first looked at the new color contract function in CSS, the words were reversed, so that’s notable. It’s contrast-color() now, and starting it’s life in Safari Technology Preview. Now it only takes one argument, a color, and you get back either black or white (rather than providing your own color choices). Once this makes it’s way to a browser support level you’re comfortable with, it seems like a nicely low-effort way to ensure an accessible color to sit on top of an unknown background, so long as that background is a solid color. Except that it’s using the WCAG 2 algorithm to make the choices, and it has some notable limitations, including literally make the wrong call. But it’s possible the underlying algorithm gets updated to APCA, which seems much smarter, doing things like factoring in size and weight, but it’s unclear if browsers will ever be allowed to use it Because Drama™.