Create organic, multi-colour mesh gradients. Drag the colour points, adjust blur, and copy the CSS.
background-image.The output uses standard CSS radial-gradient functions, so it renders identically in all modern browsers. Older browsers fall back to the base background colour.
This tool produces pure CSS. To rasterise it, screenshot the preview or place the CSS on an element and capture it with your browser's dev tools.
They give backgrounds a soft, organic feel and look modern next to flat colours โ popular in 2020s product design (Stripe, Linear, etc.).