Use APKPure App
Get Color Code Reference Book old version APK for Android
To understand colors.
1. Lists of commonly used color color code
2. Color Name with Chinese & English name
3. HTML & CSS color specification
4. Web Safe Colors
5. Use camera identify object color(auto focus pre 3.5 sec)
6. Pick a picture to identify object color
7. DIY - color palette
8. My Favorite Colors
Will add more color code lists...