Atmos Gallery

Colour read from light and atmosphere. Drop in an image and Atmos Gallery reads a palette from its mood: the light it carries, not only its dominant colours.

It is a free desktop web tool, made by KauStudio. There is nothing to sign up for. The palette is extracted on your own machine: the image is read into a canvas, clustered in OKLCH and discarded, and the full-size image is never uploaded. When you choose an image, a smaller copy is automatically sent to Anthropic with the palette’s colour values and proportions to generate a name and description. Palettes are kept in your own browser and can be exported as Tailwind theme values, W3C design tokens, Figma variables, CSS custom properties or an .ase swatch file.

The tool itself needs JavaScript to run, and a desktop-width window. This page is what is left without it. How it Works does not need it: that page is prerendered in full, and it is where the argument lives — why an image's atmosphere is read rather than its most common pixels, and how a palette becomes a working, accessible colour system.

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