Logo to Brand Style Guide

The Logo to Brand Style Guide Generator turns a logo file into a practical starting point for a brand style guide. Upload, drop or paste a PNG, JPG, WEBP or SVG logo. The tool looks for a transparent or plain background around the logo and leaves it out, then groups the remaining pixels into colours. From these it picks a primary, secondary and accent colour with simple rules, builds a neutral grey scale lightly tinted with your colours, and adds success, warning, error and info colours whose hue and strength are nudged towards your palette so they sit well together.

Every colour gets a 50 to 900 scale of tints and shades, with the original colour placed on the step that matches its lightness. You can change any colour role with a colour picker, by typing a HEX code or by clicking one of the colours found in the logo, and the whole guide updates. The Accessibility tab shows a WCAG 2 contrast table for common text and background pairs with AA, AAA and AA Large results, and suggests the right text colour for each brand colour and the darkest or lightest shade to use as text on white or dark backgrounds.

The Typography tab suggests a Google Fonts pairing for headings and body text based on traits of the logo, such as warm or cool colours, colour strength and how rounded its shapes are. It is a suggestion from simple rules, not font recognition. The Logo usage tab gives the aspect ratio, a transparency check, minimum sizes for screen and print, clear space, header and favicon sizes, and previews on light, dark and brand backgrounds. Export CSS custom properties, SCSS, Tailwind v4 or v3 config and design tokens JSON, or download a self-contained HTML style guide you can share or print as a PDF. Everything runs in your browser and the tool does not use AI.