Colour

Links

500+ Colours with their RGB values.

ColorDrawable

To set the colour for a drawable object (where pw is a popup window):

final ColorDrawable dw = new ColorDrawable(Color.GREEN);
pw.setBackgroundDrawable(dw);

…we can also use RGB values e.g:

final ColorDrawable dw = new ColorDrawable(Color.rgb(137, 104, 205));