Brand Color Extractor

A brand color extractor pulls the dominant colors out of an image — a logo, a screenshot, a moodboard, a competitor's site — and gives you the hex codes, RGB values, and a perceptual luminance score for each. This free brand color extractor runs entirely in your browser using HTML5 canvas, which means your image never uploads to a server: great when the image is a confidential pitch-deck mockup or an early product screenshot. Five color swatches are surfaced per image, each clickable to copy the hex code. Designers, founders, and developers reach for a brand color extractor whenever they need to match an existing brand, audit a competitor's palette, or jump-start a new brand-identity document.

How the brand color extractor works

This brand color extractor uses a histogram-based color-quantisation algorithm. The uploaded image is first scaled to a 200-pixel maximum dimension (so a 4K logo and a tiny favicon take the same processing time). Every visible pixel is binned into a 6-bit-per-channel histogram, then the most frequent buckets are extracted. The algorithm deduplicates perceptually similar colors (so you don't get five near-identical shades of the same blue) and returns the top five swatches. For each color it computes the WCAG-friendly relative luminance — that's why the swatch text is automatically light or dark for legibility.

When to use a brand color extractor

Brand color extractors solve four common problems. First, brand-guideline kickoff: dropping in three or four reference images and seeing the union of palettes is the fastest way to spot a coherent direction. Second, competitor audits — paste in a competitor's home-page screenshot and you have their palette in seconds. Third, mockup matching: when a stakeholder sends a Photoshop comp and the design team needs the exact hex codes for the build, this beats eye-dropping pixel by pixel. Fourth, marketing-asset compliance: verify that an outside agency's hero image actually uses your approved brand colors.

Why hex codes alone aren't enough

A good brand color extractor surfaces more than hex codes — it also reports RGB triplets (useful for CSS, design tools, and print) and a relative luminance score (which predicts how text will read against the color). Accessibility-conscious teams use the luminance value to decide whether a brand color is safe as a background under WCAG AA contrast rules. This tool shows luminance as a 0-100 integer alongside every swatch; if the value is above 50, dark text reads well on top; below 50, prefer light text.

Frequently asked questions

Does this brand color extractor upload my image?

No. The brand color extractor runs entirely in your browser using HTML5 canvas; no image data is transmitted, stored, or logged. Confidential logos, pitch-deck mockups, and pre-launch screenshots stay on your device. You can verify this by opening your browser's network panel while extracting a palette — there are no outbound requests.

What image formats does the brand color extractor support?

The brand color extractor supports PNG, JPG, and WebP — the same formats every modern browser can decode. SVG files are not currently supported because the canvas rasterisation step depends on a pixel buffer; export your SVG to PNG first.

How accurate is a histogram-based color extractor versus k-means?

For brand palettes, histogram-with-deduplication delivers results that look indistinguishable from full k-means clustering, at a fraction of the compute. K-means produces marginally tighter clusters on photographic images with smooth gradients, but for logos and design mockups (which dominate brand-color use cases) histogram-based extraction is both faster and easier to reason about.

Can I extract more than five colors?

The brand color extractor surfaces the top five dominant colors because most brand systems use 3-5 primary colors. If you need more, run the extractor twice on cropped sections of the same image — different regions surface different palettes, which is often what designers actually want.

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