Color.review - Colors that look and work great for everyone.
Ava - Making conversations accessible for the deaf
Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
QUnit - What is QUnit? QUnit is a powerful, easy-to-use JavaScript unit testing framework. It's used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself!
Colorbox.io - Create accessible color systems 🎨
Chai - Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework.