Instacolor

Instacolor helps you create, share, and apply color palettes to your UI.

This color palette comprises primary and accent colors that can be used for illustration or to develop your brand colors. They’ve been designed to work harmoniously with each other. The color palette starts with primary colors and fills in the spectrum to create a complete and usable palette for Android, Web, and iOS. Google suggests using the 500 colors as the primary colors in your app and the other colors as accents colors.