Color checker - Apps on Google Play

Color Detector - Apps on Google Play

Color Memory - Apps on Google Play

App Live Features - BrowserStack

Color Blindness Test by EnChroma arrives on Android - Android Community

Color Meter - RGB HSL CMYK RYB - Apps on Google Play

I shared an analog watch face inspired from material you around 9 days ago.. It's out :).. Do check it out.. : r/PixelWatch

Display Tester - Apps on Google Play

Color Contrast Checker - Apps on Google Play

Color Strikes - Apps on Google Play

Google Play icon design specifications

Display Tester - Apps on Google Play