imLolman
This is a Flat UI Colors Palette inspired by https://flatuicolors.com/ It Works Fully Offline and You can Copy Awesome Flat Colors in Just a Click. It stays always above (in the Top of) the apps. Give it a try, It Deserves a try. :) For OS Other then ChromeOS This app is Available Here : http://imlolman.github.io/Flat-UI-Colors-Chrome-App