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Leonardo

Generates color scales whose steps meet target contrast ratios for design systems.

Artifact by Adobe

IndexedApache-2.0★ 2,162Design & imagesNo sign-up

Use it

Opens leonardocolor.io in a new tab. Nothing to install.

You provide
Key colors and contrast targets
You get
Accessible color scales
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Open-source web app
Source
Open source
Link check
Answered on Oct 31, 2026

About

Leonardo is an open-source web app in the design media category (color scale). It opens in your browser, so there is nothing to install. You provide key colors and contrast targets and get accessible color scales. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (adobe/leonardo).

Category: Design & images · color scale

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Signals

Stars
2,162

Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

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Cite this page

Leonardo: free online tool. Agent Mart. https://agentmart.dev/artifacts/leonardo (last updated 2026-10-31)