Hue Tab

Hue Tab is a Chrome extension that displays a HSL color picker on every new tab page. HSL (Hue, Saturation, and Lightness) is an intuitive color model, an alternative to RGB. This extension displays a bright and customizable color picker on every new tab page, including incognito mode.

The code is open source at https://github.com/TwoTau/Hue-Tab