Radian is a high-quality, flexible and open-source design and development library built using React, Radix and Tailwind. It serves as a comprehensive UI system that enables teams to build next generation world class products and solutions with consistent interfaces.

The library provides production-ready components and tokens that map directly to real code, ensuring design and development remain synchronized. Key features include high quality base components built with attention to detail and best practices, reusable UI blocks designed to plug into any layout, and a themeable system that allows editing one token to restyle the entire design system with light, dark, or custom themes.

Radian offers rapid development capabilities with a design system built for speed, scale and simplicity. Components can be installed via CLI or copied and pasted directly without configuration. The system features tree-shakable architecture that only imports what you use for ultra-light bundles and improved performance.

The library maintains seamless design to code sync where changes made in Figma are easily replicable in the code, guaranteeing pixel-perfect consistency. This approach ensures that teams can build consistent interfaces efficiently while maintaining design integrity throughout the development process.

Radian is designed for teams who move fast and need production-ready UI components. It supports responsive typography, motion components, color presets, and provides a growing block library with pre-made website and application UI blocks to simplify the design process.