Drop any image to isolate dominant, high-chroma harmonious swatches or craft fluid multi-stop gradients with one-click CSS exports.
Drag & drop your image here, or browse
Supports PNG, JPG, WebP, SVG (No image size limit, instant client-side parsing)
Click any HEX, RGB or swatch to copy instantly to your clipboard.
:root {
--color-1: #070b14;
--color-2: #0d1527;
--color-3: #1e293b;
--color-4: #0284c7;
--color-5: #38bdf8;
--color-6: #e0f2fe;
}High-contrast, GPU-accelerated gradient backdrop ready for production interfaces.
Engineered for high readability, modern web interfaces, and dark obsidian themes.
background: #070b14;
background: linear-gradient(135deg, #070b14 0%, #38bdf8 100%);Click any preset to load instantly into the generator.
Unlike legacy tools that upload private photos to remote cloud servers, Color Pulse runs a proprietary recursive Median Cut color quantization algorithm directly inside your browser via the HTML5 Canvas API.
Uploaded images (PNG, JPG, WebP, SVG) are processed through an offscreen Canvas element scaled to a calibrated 120×120 pixel matrix. This reduces billions of raw calculations to under 3 milliseconds without losing chromatic fidelity.
Pixels are mapped into three-dimensional RGB color space. The algorithm identifies the color channel with the highest variance (Red, Green, or Blue) and recursively bisects color bounding boxes into balanced cluster buckets.
To prevent muddy or redundant swatches (e.g. 5 identical shades of dark gray), candidate colors are evaluated using Euclidean color distance thresholding (ΔE ≥ 38). Low-saturation noise is suppressed in favor of vibrant aesthetic tones.
The final 6 distinct tones are ranked according to WCAG 2.1 perceived luminance formulas. Colors are neatly cataloged into Base Deep, Muted Shade, Mid Tone, Vibrant Accent, Primary Glow, and Highlight for instant UI implementation.
Everything you need to know about using extracted swatches, constructing high-contrast interfaces, and authoring GPU-accelerated CSS gradients.
When applying extracted palettes to web applications, allocate 60% of the visual area to dominant neutral bases (backgrounds, surfaces), 30% to structural elements (cards, navigation bars, borders), and reserve the high-saturation 10% for primary call-to-action buttons, active badges, and focus rings.
Modern browser rendering engines (Chromium Blink, WebKit, Gecko) render CSS gradients on dedicated GPU compositing layers. For full-width hero backdrops, 135° linear gradients provide natural diagonal lighting. For subtle ambient background glows, use radial-gradient(circle at center) with low opacity stops.
background: linear-gradient(135deg, #070b14 0%, #38bdf8 100%);
Eliminate manual color copying between design files and code. Color Pulse formats palettes directly for tailwind.config.js under theme.extend.colors, as well as native standard CSS Custom Properties (--color-1 through --color-6) for immediate frontend adoption.
theme: { extend: { colors: { palette1: '#070b14' } } }
Clear answers about color sampling accuracy, client-side privacy, Tailwind CSS export, and gradient rendering.
:root { --color-1: ...; } blocks ready to paste into any stylesheet.module.exports = { theme: { extend: { colors: { ... } } } } config object.background: #hex statement immediately preceding the modern standard background: linear-gradient(...) or radial-gradient(...) rule. This ensures 100% graceful degradation even on legacy browsers or email clients.