Color Palette Guide

A guide to extracting professional color palettes from images — how the color quantization algorithm works, how to use HEX and RGB values in your designs, and how to build a saved palette for your project.

What this tool is for

This tool analyzes your image and identifies the most visually dominant colors, providing exact HEX and RGB codes that you can use directly in CSS, design software, brand guidelines, or interior design plans. It also includes an interactive pixel picker for sampling any specific color from anywhere in the image.

When you should use it

When designing a website and wanting to match the color palette to a product photo or brand asset, when creating a color scheme for UI design inspired by a reference image, when an interior designer wants to extract paint colors from an inspiration photo, or when a marketer needs to build a consistent brand palette from existing visual assets.

Step-by-step instructions

  • Upload your reference image by dragging it to the upload area.
  • The quantization algorithm instantly analyzes the pixel distribution and extracts the top 6 dominant colors.
  • Click any color swatch to copy its HEX code to your clipboard.
  • Use the interactive eyedropper to click anywhere on the image to sample a specific pixel's exact color.
  • Save your favorite colors to your personal palette list.
  • Export your saved palette as JSON for use in code or design tools.

How it works & Privacy

A color quantization algorithm (based on median cut or k-means clustering) analyzes the full pixel distribution of your image to identify clusters of dominant hues. The interactive picker reads raw pixel data from the HTML5 canvas on each click. Your saved palette is stored in your browser's localStorage so it persists between sessions.

Common Mistakes to Avoid

  • Using a very low-quality or heavily compressed image — JPEG artifacts can introduce 'muddy' or inaccurate colors that don't represent the original. Use the highest-quality source image available.
  • Expecting the palette to include every color in the image — the algorithm finds the most visually dominant clusters, not every individual color. Use the eyedropper to sample specific pixels if you need a less dominant color.
  • Not saving colors before leaving the page — while colors are stored in localStorage, unusual browser configurations or privacy mode (incognito) may not persist data.
  • Confusing HEX and RGB formats — HEX (e.g., #3A86FF) is for CSS and web use; RGB (e.g., 58, 134, 255) is for design tools and some programming contexts.

Frequently Asked Questions

Can I export my color palette?+
How many colors can I save to my personal palette?+
How does the algorithm decide which colors are dominant?+
Can I use the extracted HEX colors directly in CSS or Figma?+
What if I want a specific color from a small area of the image?+

Disclaimer: Our tools provide best-effort local processing. While we prioritize accuracy and privacy, users are responsible for verifying the final results. No data is stored or transmitted by this website.