For color selection pages (for example: Button background selection not the color changing block on the coding page) there could be a Material Design Color Palette that we can use.
Every time I need to change the status bar and title bar color to work with Material design I need to go to their Material Design Guidelines website and copy the color codes 500 and 700.
It would be so useful to see something like it.
Material Design Color Palette (by Google)
https://material.io/guidelines/style/color.html#color-color-palette