About Image Color Palette Extractor
Image Color Palette Extractor is a high-performance web utility built to upload any image to instantly extract its dominant color palette. Get exact HEX, RGB, and HSL codes, export CSS/JSON, and download swatch images instantly and securely. Because it is designed with a local-first architecture, all processing occurs directly in your browser's memory using client-side JavaScript. This ensures that your files, code, or private text inputs are never uploaded to any external server or tracked by third-party analytics.
Whether you are formatting source code, cleaning text files, converting file structures, or running diagnostics, running these processes locally in your browser memory sandbox eliminates network latency and protects your data privacy.
Frequently Asked Questions (FAQs)
How does the color palette extractor cluster colors?
The tool uses the Median Cut color quantization algorithm. It downscales the image and maps the pixels into a 3D RGB color space, recursively splitting the color distribution along its widest range. This yields highly accurate dominant colors.
Are transparent pixels in my PNG counted?
No. The extractor automatically ignores pixels with an alpha channel below 125, ensuring that transparent backgrounds do not skew the dominant color results.
Can I download the palette as a swatch graphic?
Yes, clicking 'Download Palette Image' creates a clean, downloadable PNG banner containing all extracted colors along with their HEX code labels.
Is my image uploaded to a server?
No. The entire pixel extraction is done locally in your browser's sandboxed environment. Your images never leave your computer.
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