This is a production-grade single-page web application for picking and converting colors in the OKLCH and LCH color spaces. It provides interactive 2D charts (WebGL2-accelerated), sliders, numeric inputs, and a 3D gamut model (three.js) to explore and select colors. The app supports sRGB, Display P3, and Rec.2020 gamuts, and can parse and output a wide variety of color formats (hex, rgb, hsl, oklch, lch, lab, linear RGB, Figma P3 hex, etc.). State management is handled by nanostores with persistent settings in localStorage, and the URL hash is used for shareable color states. The codebase is well-structured with clear separation between core color logic (lib/), reactive stores (stores/), and UI components (view/). It includes a comprehensive test suite and CI/CD pipelines for deployment to Firebase Hosting. The architecture is a monolith frontend with no backend, built with Vite, TypeScript, PostCSS, and Pug templates.