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Image Palette to Design Tokens

· Last updated：2026-06-23

Extract a dominant color palette from an image (k-means clustering), then export it as CSS variables, SCSS variables, a Tailwind config, or JSON design tokens — with named colors and an auto-generated shade scale for each

Details

What this tool helps you do

Upload an image and the tool will:

  1. Downscale it and run k-means clustering on the pixels to find the most dominant colors (you choose 3 / 5 / 8 / 12).
  2. Name each color (numeric color1… or semantic primary/accent…) and attach a population % so you can see which colors dominate.
  3. Optionally generate a shade scale for every color (Tailwind-style 50–950 or Material-style 100–900) by holding hue & saturation roughly constant and stepping lightness — giving you a usable ramp from light tint to dark shade.
  4. Serialize the result into your chosen format(s): CSS variables, SCSS variables, a Tailwind config object, JSON design tokens, or all four.

Pick a token prefix (e.g. brand, app) and a naming style, copy the generated code straight into your project, and your design system immediately consumes the palette.

Execution

Run this tool

Fill in the form, run the tool, and review the result in one place.

Samples

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Written by the Elysia Tools team
Image355
Color214
JSON107
HTML/CSS86
CSS48
Scale20
Brand14
Color Palette10
CSS Variables8
Design System7
Color Scheme5
Design Tokens5
Brand Colors3
Color Extraction3

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category
Design
Input types
file, select, text
Output type
html
Sample coverage
4
API ready
Yes

Overview

The Image Palette to Design Tokens tool extracts dominant colors from any uploaded image using k-means clustering and converts them directly into production-ready design tokens. You can generate custom shade scales and export the palette as CSS variables, SCSS variables, a Tailwind configuration, or JSON design tokens to integrate directly into your design system.

When to use

  • When you need to extract a brand color palette from a logo, photograph, or mood board image.
  • When building a design system and you need to generate consistent Tailwind-style (50–950) or Material-style (100–900) shade scales from base colors.
  • When transitioning design assets into developer-friendly formats like CSS variables, SCSS variables, or JSON design tokens.

How it works

  1. 1Upload an image (PNG, JPG, WebP, GIF, or AVIF) which is downscaled to perform fast k-means clustering on the pixel data.
  2. 2Select the desired palette size (3, 5, 8, or 12 colors) and choose between numeric or semantic naming styles.
  3. 3Optionally generate a shade scale (Tailwind 50–950 or Material 100–900) that steps lightness while keeping hue and saturation constant.
  4. 4Export the final palette and scales as CSS variables, SCSS variables, a Tailwind config object, or JSON design tokens.

Use cases

  • Extracting a cohesive color palette from a client's brand image to bootstrap a new web project.
  • Generating a complete Tailwind CSS color configuration with 50–950 shades directly from a hero photograph.
  • Creating standardized JSON design tokens from mood board images for cross-platform design system synchronization.

Compare alternatives

  • Convert files into Data URIs (Base64 or percent-encoded) for inlining images, fonts, and assets directly into HTML, CSS, or Markdown

  • Generate paginated photo contact sheets with thumbnails, filenames, and EXIF lines

  • Extract dominant colors from images using various algorithms including k-means clustering and histogram analysis

Who it's for

Best for

  • Convert images in the browser.
  • Workflows where Palette Size matters, such as 3 colors or 5 colors.
  • The “Extract a 5-color palette with a Tailwind scale” workflow, done in one pass.

Not ideal for

  • Fully automated batch jobs — this page is built for interactive use; use the API endpoint for scripts.
  • Files in formats this tool does not accept — it works with .png, .jpg, .webp, .gif input.

Edge cases & common failures

  • Very large files

    Large files take longer and can hit browser memory limits — try a smaller sample first.

  • Skipping the output check

    Compare the first rows or pages of the output with the input before using it in production.

  • Files from unusual exporters

    Some files use format variants that do not convert cleanly — if the output looks wrong, re-save the file from the app that created it and try again.

Examples

1. Generating Tailwind Theme from a Hero Image

Frontend Developer

Background

A developer is building a landing page and wants the UI theme colors to match the primary hero illustration provided by the designer.

Problem

Manually picking colors and calculating Tailwind shade scales (50-950) is tedious and often results in inconsistent contrast steps.

How to use

Upload the hero illustration, set the palette size to 5 colors, select the Tailwind shade scale, choose the Tailwind config output format, and set the token prefix to 'hero'.

Palette Size: 5, Shade Scale: Tailwind (50-950), Output Format: Tailwind config (JS), Token Prefix: hero, Naming Style: semantic

Outcome

An exportable Tailwind configuration object containing 5 semantic color families (primary, secondary, etc.), each with a complete 50-950 shade scale.

2. Extracting CSS Variables for a Brand Redesign

UI Engineer

Background

A UI engineer needs to extract the core colors from a new brand logo image and implement them as CSS custom properties in a global stylesheet.

Problem

The logo contains multiple shades, and the engineer needs to quickly extract the 3 most dominant colors and format them as clean CSS variables with a 'brand' prefix.

FAQ

How does the tool extract colors from the image?

It downscales the image and runs a k-means clustering algorithm on the pixels to group similar colors and identify the most dominant ones.

What output formats are supported?

You can export your palette as CSS variables, SCSS variables, a Tailwind configuration object, JSON design tokens, or all formats simultaneously.

How are the shade scales generated?

The tool holds the hue and saturation of the extracted base colors constant while stepping the lightness value to create a smooth ramp from light tints to dark shades.

Can I customize the naming of the generated tokens?

Yes, you can choose between numeric names (e.g., color1, color2) or semantic names (e.g., primary, accent) and define a custom token prefix.

What image file formats can I upload?

The tool supports PNG, JPG, JPEG, WebP, GIF, and AVIF image files up to 10MB.

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How to use

Upload the brand logo image, set the palette size to 3 colors, disable the shade scale, select CSS variables as the output format, and set the prefix to 'brand'.

Palette Size: 3, Shade Scale: None, Output Format: CSS variables, Token Prefix: brand, Naming Style: numeric

Outcome

A clean CSS block containing three variables (--brand-color1, --brand-color2, --brand-color3) mapped to the exact hex codes of the dominant logo colors.

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