How to extract a colour palette from an image with OnyxPDF
- Drop an image into the tool.
- The dominant colours are extracted automatically.
- Click any swatch or hex code to copy it.
- Use the palette in your design tool, CSS or brand board.
Why do it in your browser instead of uploading?
- Hex + share percentage: not just “these colours appear” but which ones dominate — the difference between a palette and a colour list.
- One-click copy drops the hex straight into your project.
- Match a design to a photo’s mood in seconds — brand boards, slides, social templates.
- No upload of client artwork or unreleased product shots.
Good to know (honest limits)
- The palette summarises the image; tiny accent colours below the extraction threshold may not appear. For a specific pixel’s colour, use an eyedropper tool.
- Near-identical shades are merged into one representative swatch — that is what makes the palette readable.
Frequently asked questions
How many colours are extracted?
The top dominant colours by share, shown with their hex codes and approximate percentage of the image.
How accurate are the hex codes?
Each swatch is the representative colour of a cluster of similar pixels, accurate to within a few values of the cluster’s centre — exact for design use.
Can I get the colour of one specific spot?
This tool extracts the overall palette. For a single pixel, open the image in the Image Editor-style preview of your OS or a dedicated eyedropper.
Is my image uploaded?
No. The pixels are analysed on a canvas in your browser.