🎨 Color Palette Extractor
Upload an image to extract its dominant colors. Get HEX, RGB, HSL values and export as CSS variables, JSON, or Tailwind config. 100% in-browser.
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How Color Palette Extraction Works — From Images to Design Systems
Color palette extraction turns any image into a curated set of colors you can use in design, branding, and development. Understanding the process helps you get better results and apply palettes more effectively.
The Science Behind Color Extraction
- Pixel Sampling — the image is downscaled and every pixel's RGB value is read via the Canvas API, producing a raw dataset of thousands of color points.
- Median-Cut Quantization — the algorithm repeatedly splits the color space along its longest axis, grouping similar pixels until only the requested number of buckets remain. Each bucket's average becomes one palette color.
- K-Means Clustering — an alternative approach that iteratively assigns pixels to the nearest cluster center and recalculates centroids, converging on the most representative set of colors.
- Dominant vs. Accent Colors — dominant colors cover the largest pixel area, while accent colors are less frequent but visually striking. A good palette captures both.
Using Extracted Palettes in Your Projects
- Brand Identity Design — pull colors from a mood-board image to establish primary, secondary, and neutral tones for a new brand.
- Web Design Color Schemes — export extracted colors as CSS custom properties or Tailwind config and drop them straight into your codebase.
- Interior Design Inspiration — photograph a space or fabric swatch and extract its palette to guide paint, furniture, and decor choices.
- Social Media Consistency — extract colors from a hero photo and reuse them across captions, overlays, and story backgrounds for a cohesive feed.
- Accessibility Contrast Checking — pair extracted foreground and background colors, then verify they meet WCAG AA (4.5:1) or AAA (7:1) contrast ratios.
Color Theory Basics for Designers
Complementary colors sit opposite each other on the wheel and create high contrast. Analogous colors are neighbors that produce harmonious, low-tension palettes. Triadic schemes use three evenly spaced hues for vibrant balance. Apply the 60-30-10 rule — 60 % dominant color, 30 % secondary, 10 % accent — to keep any layout visually balanced. When fine-tuning extracted colors, switch to the HSL model so you can adjust hue, saturation, and lightness independently without losing the palette's character.