Image Color Palette Generator
Extract dominant image colors with HEX, RGB, and HSL values and export JSON or CSS.
Analyze one JPG, PNG, WebP, or AVIF image locally in the browser, sample its pixels, and extract a compact dominant-color palette with HEX, RGB, and HSL values.
How to use this tool
Upload an accepted source file
Choose a file in one of the supported input formats. NetroDoc validates it before processing.
Choose the compatible action
Select this tool from the actions shown for your file, then start processing.
Download and review the result
Open the output and check the information, page order, readability, and file type before using it elsewhere.
What this tool does
Extract dominant image colors with HEX, RGB, and HSL values and export JSON or CSS.
Dominant-color extraction is an approximation based on sampled pixels and color buckets. Very small details, transparency, gradients, or near-identical shades can affect the result.
When this output is useful
Specific workflow
Build a reusable color reference from a logo, product photo, illustration, screenshot, or visual design without uploading the image.
Review before relying on the result
Dominant-color extraction is an approximation based on sampled pixels and color buckets. Very small details, transparency, gradients, or near-identical shades can affect the result.
Temporary processing and review
NetroDoc processes this request in temporary working storage and returns a new download. The output can retain sensitive information from the source, so inspect and handle it with the same care as the original.
Privacy →Frequently asked questions
What should I check after using this tool?
Dominant-color extraction is an approximation based on sampled pixels and color buckets. Very small details, transparency, gradients, or near-identical shades can affect the result.
When is this output useful?
Build a reusable color reference from a logo, product photo, illustration, screenshot, or visual design without uploading the image.