Nova Launcher - Nova Launcher is an highly customizable, performance driven, home screen replacement for Android 4.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!
KISS Launcher - KISS is a fast launcher for your Android.
Polarite.app - A.I. assisted color scheme generator
Lawnchair Launcher - A better Pixel Launcher
Rainglow Color Themes - 320+ color themes for a variety of editors and software.