Contrast Themes for claude.ai (unofficial)

High-contrast color themes for the claude.ai website, checked against WCAG contrast. Unofficial, not affiliated with Anthropic.

Give claude.ai a new look. 6 ready-made themes, 3 light and 3 dark with coloured edges, plus your own custom colours. Tired of the same two looks on claude.ai? This extension adds six themes: three light and three dark, each with coloured edges that give the interface a bit more character without getting in the way of reading. You can also make your own theme from a palette, a reference image or colours you pick yourself. Every theme is checked for WCAG AA contrast, so text stays easy to read. Pick a theme from the popup and it's applied straight away. It stays applied when you reload, and you can switch back to the original look at any time. This is an unofficial project, not affiliated with Anthropic. It only works on claude.ai in the browser, not in the desktop app.