Flag Theme Generator

Generate browser themes from flag-inspired color palettes with WCAG contrast validation.

Create accessible browser themes inspired by real country flags. Browse 198 country palettes in the side panel and preview themes instantly. Switch between Dark, Light and AMOLED modes to find the best look for your browser. Features: - 198 country flag palettes - Instant live preview - Dark / Light / AMOLED modes - WCAG-checked color contrast - Export to CSS variables, Tailwind, JSON, shadcn/ui, Tokens Studio - Browse & apply from the side panel - Fully local processing — zero network requests Export for designers & developers: Open the side panel to export your theme as CSS custom properties (--uc- prefix), Tailwind config (uc namespace), shadcn/ui HSL variables, Tokens Studio (W3C DTCG format), or raw JSON with metadata. Privacy: All processing happens locally in your browser. No network requests. No telemetry. No tracking. No account required. Download pre-built Chrome themes for any country at https://flagtheme.com Source code: https://github.com/investblog/flag-theme-generator ### Single Purpose Generate and apply browser themes from flag-inspired color palettes. ### Additional Fields Website: https://flagtheme.com Privacy policy: https://flagtheme.com/privacy/