Image Color Palette & Swatch Extractor
Extract dominant color palettes, CSS variables, and Tailwind theme tokens.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use Image Color Palette & Swatch Extractor
Select any photo, design asset, UI mockup, or logo.
Select between 5 to 10 dominant color swatches.
Click any color swatch to copy its HEX code or export CSS variables and Tailwind configs.
Frequently Asked Questions
How does the palette extraction work?
It runs an optical color quantization algorithm over canvas image data entirely in your local browser sandbox.
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