# Algorithmic Theming Engines: Building Self-Correcting Color Systems With \`contrast-color()\`

DevFeed: [Algorithmic Theming Engines: Building Self-Correcting Color Systems With \`contrast-color()\`](<https://devfeed.tech/articles/algorithmic-theming-engines-building-self-correcting-color-systems-with-contrast-color-4275.md>)

Original publisher: [Read original article](<https://smashingmagazine.com/2026/05/building-self-correcting-color-systems-contrast-color/>)

Author: hello@smashingmagazine.com (Durgesh Pawar)

Published: 2026-05-28T13:00:00Z

Content type: article

Language: en

Sources: [Articles on Smashing Magazine -- For Web Designers And Developers](<https://devfeed.tech/sources/articles-on-smashing-magazine-for-web-designers-and-developers.md>)

Topics: [Web platform](<https://devfeed.tech/topics/web-platform.md>), [User interface design](<https://devfeed.tech/topics/ui-design.md>), [Web Development](<https://devfeed.tech/topics/web-development.md>)

Tags: [accessibility](<https://devfeed.tech/tags/accessibility.md>), [browser](<https://devfeed.tech/tags/browser.md>), [coding](<https://devfeed.tech/tags/coding.md>), [css](<https://devfeed.tech/tags/css.md>), [css-functions](<https://devfeed.tech/tags/css-functions.md>), [techniques](<https://devfeed.tech/tags/techniques.md>), [themes](<https://devfeed.tech/tags/themes.md>)

## AI overview

The article examines CSS contrast-color() as a browser-native way to choose black or white text based on a background color, with the goal of improving color-contrast accessibility without runtime JavaScript.

## Source excerpt

Seventy percent of websites still fail basic WCAG contrast checks in 2025. After years of design system tooling, accessibility linters, and JavaScript libraries, nothing moved the needle. We didn't need better libraries. We needed better CSS. `contrast-color()` is that better CSS.