contrast-color()The contrast-color() CSS function picks a color that has guaranteed contrast against a specified foreground or background color.color-typesColor typesnewly2026-04-10https://drafts.csswg.org/css-color-6/#funcdef-contrast-colorhttps://developer.mozilla.org/docs/Web/CSS/Reference/Values/color_value/contrast-colorcss.types.color.contrast-colorhttps://nowyoucanuse.com/features--contrast-color.html