Design Utility Tool

Color Toolkit

Extract palettes from images, check accessibility contrast, convert formats, and fine-tune your web color schemes.

Input Image/Color
Generate Palette
Check & Export

How to Use the Color Toolkit

1

Generate from Image

Click 'Browse' or drag an image. Dominant colors will be added.

2

Pick from Image

Click on the uploaded image preview to add a specific pixel's color.

3

Add Manually

Use the color picker or type a HEX code (e.g., `#ff5733`) and click "Add".

4

Manage Palette

Remove colors ('×'), edit names, and copy values (HEX, RGB, HSL).

5

Check Contrast

Enter foreground/background HEX. Instantly see ratio & WCAG compliance.

6

Generate Harmonies

Select base color & harmony type. Add generated colors ('+' or 'Add All').

7

Simulate Blindness

Choose a simulation type to see how your palette might appear.

8

Generate Gradient

Select 2+ colors, type & direction. Copy generated CSS.

9

Export Palette

Click the desired format button to download your colors.

Updating...

1. Upload Image (Optional)

Uploading image...

File being uploaded:

Processing image, extracting colors...

2. Add Colors Manually

3. Check Contrast

4. Generate Harmonies

Add colors to your palette first to generate harmonies.

5. Generate Gradient

Add at least two colors to your palette to generate gradients.

6. Export Palette

Add colors to your palette to enable export options.

Your Palette

Your palette is empty.

Upload an image or add colors manually to start.

Color Blindness Simulation

Add colors to your palette first to run simulations.

Related workflow

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Image Compressor

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Related Guides

View all guides

Practical playbooks to help you ship faster with fewer mistakes.

Build a Brand Palette System

9 min read

Turn one brand color into a production-ready palette with semantic tokens and accessibility checks.

WCAG Color Contrast Guide

8 min read

Use practical contrast testing rules to ship accessible, readable UI color systems with confidence.

CSS Gradient Best Practices

8 min read

Design gradients that stay readable, performant, and visually consistent across real devices.

Best Open Graph Image Size

6 min read

Use platform-safe Open Graph dimensions so social previews look clean and clickable.

Tool support

Use Color Toolkit when you are building a system, not just picking one nice hex

The real strength here is system work: palette extraction, contrast validation, harmony generation, and export-ready tokens. It is most useful when a team needs colors that can survive design, code, and accessibility review together.

Best for palette foundations

Extract or sample colors, then turn them into something reusable instead of leaving them as ad hoc picks.

Best for accessibility review

Check contrast, test combinations, and avoid shipping color decisions that fail in production UI states.

Best for exports and handoff

Move from discovery to CSS, SCSS, JSON, Tailwind, and gradient-ready outputs without rebuilding the palette manually.

What the toolkit helps you do

Use the toolkit to move from inspiration to implementation instead of splitting that workflow across disconnected tools.

Extract

Pull dominant colors from images or sample exact pixels with the eyedropper.

Validate

Check WCAG AA/AAA contrast and simulate color-vision deficiencies before shipping.

Generate

Create harmonies, tints, shades, and gradient directions that feel connected to the palette.

Export

Package colors into CSS, SCSS, JSON, or Tailwind outputs for real implementation.

Best-practice checks

Do this

  • Check contrast before naming colors “approved” or exporting them into code.
  • Keep a disciplined palette instead of letting every screen invent its own accents.
  • Test gradients and simulated states in real UI compositions, not isolated swatches only.

Avoid this

  • Do not rely on one pretty screenshot if the color pair fails in buttons, forms, or dark surfaces.
  • Do not skip naming and tokenization if the palette is meant for a real product.
  • Do not assume simulated accessibility checks replace actual context review.

Frequently Asked Questions

Upload common formats like JPG, PNG, WEBP, GIF, and SVG. The toolkit extracts the most dominant visible colors.
The contrast ratio is calculated based on WCAG 2.1 guidelines, comparing the relative luminance of the foreground and background colors.
AA and AAA are WCAG conformance levels. AA requires a contrast ratio of at least 4.5:1 (or 3:1 for large text). AAA requires 7:1 (or 4.5:1 for large text). Meeting these levels ensures better readability for users with visual impairments.
The simulator applies standard color-vision transformation models to approximate how palettes appear with conditions like Deuteranopia, Protanopia, and Tritanopia.
Export formats allow you to use your palette in different projects: CSS Variables for standard web projects, SCSS Variables for projects using Sass, Tailwind Config to integrate colors directly into your Tailwind CSS setup, and JSON for data sharing or use with other tools.
Extraction prioritizes dominant colors (typically 5-6). Complex gradients, low contrast areas, or noisy backgrounds can shift results. Use the eyedropper or manual color entry for precision.
Tints are created by adding white to a base color, making it lighter. Shades are created by adding black, making it darker. This tool generates a range of tints and shades for selected palette colors.