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Find the Dominant Color of an Image — Online

Extract the real color palette of any photo in your browser: median-cut quantization finds 3–12 key colors with HEX codes, CSS variables and JSON export.

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Drag & Drop Image

Processing... 0%
Reading image file
Downscaling pixels
Running median-cut quantization
Building the palette

Result

Preview Output

This page opens the palette extractor preset to a single color: the one dominant color of the whole image. Upload a photo and the tool collapses every pixel into one representative value — the color that would stand for this picture if it could keep only one.

A single dominant color has surprisingly many uses: placeholder backgrounds that appear while photos load (the technique behind smooth image loading on large sites), tinted UI chrome behind cover art, automatic theme accents for cards and playlists, or a quick answer to “what color is this product, really?”. The result is shown as a large swatch with its HEX code, one click to copy.

Because the tool computes the color by averaging the largest pixel cluster rather than picking one pixel, the answer is stable — noise, JPEG artifacts and small highlights do not sway it. Everything runs locally in your browser with no upload. Need the fuller picture? Switch the selector to 3–12 colors and get the complete palette with CSS and JSON export.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Median-cut color quantization over a ~10,000-pixel downscaled sample for fast, stable palettes.
  • Choose 3 to 12 colors; the dominant color (largest pixel share) is highlighted and each swatch shows its percentage.
  • One-click copy per swatch plus CSS variables block, JSON array and a downloadable palette strip PNG.

Key Benefits

✓ Complete privacy: the photo is downscaled and analyzed on your device — nothing is uploaded to a server.
✓ Real algorithm, real colors: median-cut quantization — the same technique GIF encoders use — finds the colors that actually dominate the image, not a random sample.
✓ Ready for handoff: copy any single swatch, the whole palette as CSS custom properties, or a JSON array for scripts and design tokens.

Use Cases

  • • Turn a brand photo shoot or hero image into a ready CSS color palette for a design system.
  • • Extract the dominant color of a cover or product photo for placeholder backgrounds and theme accents.
  • • Document the palette of an illustration or mood-board image as HEX swatches with JSON export.