PixelVault’s color and image analyzer extracts palettes, histograms and contrast information from any image, entirely in your browser. Drop in a photo, illustration or screenshot and instantly get its dominant colors as copyable hex codes, complete with the share each color occupies. It is a fast way to pull a palette from an image you love without installing anything or uploading your file.
From the dominant colors you can generate complementary, analogous, triadic and monochrome harmonies for building a coherent scheme, and export the whole palette as plain HEX, CSS variables, SCSS variables, JSON or a Tailwind config — ready to paste straight into your project. For deeper analysis, the RGB and luminance histograms reveal exposure and tonal balance, a grayscale preview shows how an image reads without color, and the WCAG contrast checker tells you whether a text-and-background pair passes AA and AAA for accessibility.
How it works
PixelVault samples the image at reduced resolution and buckets similar colors to find the dominant ones, converts between color spaces to build harmonies, and reads pixel values to compute histograms. Contrast ratios use the WCAG 2.1 relative-luminance formula. All of it runs on the pixels already loaded in your browser.
Why local processing matters
Analyzing locally keeps your images — client work, unreleased designs, private photos — off the network. There is no upload and no server that could keep a copy, and results are instant because the pixels are already in the page.
Supported formats
- JPG — Analyzed directly.
- PNG — Transparency respected when sampling colors.
- WebP — Fully supported.
Common use cases
- Extract a color palette from a photo or design reference.
- Generate matching color schemes for a brand or UI.
- Check text-and-background contrast for accessibility.
- Inspect exposure and tone with RGB and luminance histograms.