Palette & Grading

Extract dominant color palettes (HEX/RGB/ratio) from images online, copy in one click and export as palette image PNG, GIMP .gpl, JSON or CSS variables; plus overall grading for exposure, brightness, contrast, saturation, hue, temperature, tint and gamma, with live preview and export to PNG/JPG/WebP. Everything runs locally in your browser with no uploads.

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Features

  • Median-cut algorithm to extract 2–16 dominant colors with HEX and pixel ratio
  • Click a swatch to copy its HEX, from the original or graded result
  • Export palettes as PNG image, GIMP .gpl, JSON and CSS variables
  • Full grading: exposure / brightness / contrast / saturation / hue / temperature / tint / gamma
  • Downsampled live preview with one-click compare against the original
  • Export PNG / JPG / WebP with adjustable quality, fully local with no uploads

FAQ

Are my images uploaded to a server?

No. Color extraction, grading and export all happen locally in your browser — files are never uploaded to any server, secure and fast.

How is the palette extracted?

The tool uses the Median Cut algorithm to cluster image pixels, sampling by step and skipping transparent pixels for performance, then outputs each dominant color and its pixel ratio; you can extract 2–16 colors.

Can the extracted palette be used in design software?

Yes. Besides a palette image PNG, you can export a GIMP palette (.gpl), JSON and CSS variables you can paste directly into stylesheets — handy for reuse in design and front-end projects.

Is the preview quality the same as the final export?

For smooth real-time performance the preview renders on a downsampled base; when you download, the same grading parameters are applied to the full-resolution image, so the exported image keeps the original clarity.