ColorHexer Pro — Research-Grade Color Extractor & Token Studio
Extract perceptually uniform Oklab/OKLCH color palettes, interactive draggable focal markers, Adobe mood harmonies, 9-step accessible shade ladders, and Tailwind CSS 4/DTCG design tokens from any image.
100% In-Browser Privacy & Scientific Uniformity Notice
All image downsampling, pixel scanning, K-Means++ clustering, and color transformations execute 100% locally in your browser memory via Oklab perceptual space. Zero bytes of your photographs, brand assets, or artwork are transmitted to external servers.
Comprehensive Technical Guide & Reference
Upload or paste any image to extract dominant color swatches in Oklab space, adjust draggable interactive focal pins, explore Adobe-style mood palettes (Vibrant, Muted, Deep, Light), generate 9-step accessible shade ladders, and export ready-to-use Tailwind CSS 4 theme blocks, Figma design tokens, and SVG moodboards.
11. Why Oklab & OKLCH Outperform sRGB and HSL
Traditional color pickers perform averaging in non-linear sRGB or cylindrical HSL space, resulting in muddy grays, hue shifts (e.g. blue shifting to purple when lightened), and severe perceptual lightness distortions. Oklab provides a perceptually uniform color space where Euclidean distance mathematically matches human vision.
- •Linear Lightness (L): 0.0 represents black, 1.0 represents pure white with zero hue shift.
- •Chroma (C): True saturation measurement independent of optical lightness.
- •Hue Angle (h): 0° to 360° cylindrical angle across the visible color spectrum.
22. Interactive Draggable Focal Markers & 10x Loupe
Move the animated focal rings directly over the image to sample specific elements (e.g. skin tones, highlights, sky gradients). A floating 10x pixel grid with crosshairs provides sub-pixel precision sampling.
33. 9-Step Accessible Shade Ladder (50 → 950)
Every primary color anchor dynamically synthesizes a complete 9-step design system scale (50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 950) by interpolating OKLCH Lightness and Chroma with verified WCAG contrast ratios.
44. Multi-Framework Design Token Synthesis
Export production-ready theme blocks with 1 click: Tailwind CSS 4 `@theme inline`, Tailwind CSS 3 `tailwind.config.js`, W3C DTCG / Figma JSON, CSS Variables, SCSS, SwiftUI (iOS), Android Jetpack Compose (Kotlin), and downloadable SVG moodboards.
Frequently Asked Questions
No, never! All image rasterization, K-Means++ clustering, and color science calculations execute entirely inside your device's browser memory sandbox.
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