Contrast-proofing colors

may 16, 2026 🔗 Contrast-proofing colors Previously in Text selection color , I covered how the most important thing to keep in mind when setting custom highlight colors, is keeping the contrast high enough. Until recently this meant picking a colour, running it through a checker, and revisiting it whenever the brand palette changed. In 2026 the contrast-color() function reached baseline support, and the browser can now handle this part directly. ::selection , :: target-text , :: search-text { background: ye