Use APKPure App
Get Flat UI Colours old version APK for Android
A simple app to let you pick beautiful colours for your awesome Flat UI
Flat UI Colours features the most popular colours for designers to help designing your next Flat User Interface. You'll be presented a palette of flat colours which you can simply touch to get the necessary colour code.
If you have any constructive feedback, be sure to leave it in the comments. I will definitely improve this app according to your suggestion.