Create beautiful, accessible, and adaptive color systems using contrast-ratio based generated colors. Leonardo now supports full theme generation. If you’ve created a color palette for a website or app, you’ve probably encountered a few of the challenges in creating color palettes for user interfaces. One of the most common challenges is meeting accessibility criteria such as a minimum contrast ra
![Leonardo: an open source contrast-based color generator](https://cdn-ak-scissors.b.st-hatena.com/image/square/1e4c9b655c100eda6bf47ea744be83b1204bb8a9/height=288;version=1;width=512/https%3A%2F%2Fmiro.medium.com%2Fv2%2Fresize%3Afit%3A1200%2F1%2ArmcnZeNiITkATulEGyMZOA%402x.png)