Default window colour Tkinter and hex colour codes

Question

I would like to know the default window colour in Tkinter when you simply create a window:

root = Tk()

If there is one, it is possible to set w

Answer 1

I'm pretty sure it's #DDDDDD. I can't tell the difference between a button that I've specifically colored with bg='#ffffdffffd' and one that was colored with the default color.