title: Default window colour Tkinter and hex colour codes
body: <p>I would like to know the default window colour in Tkinter when you simply create a window:</p>
  
  <pre><code>root = Tk()
  </code></pre>
  
  <p>If there is one, it is possible to set widgets to the same colour or use a hex colour code? (using rgb)</p>
  
  <p>The colour code I have found for the 'normal' window is:</p>
  
  <p>R = 240, G = 240, B = 237</p>
  
  <p>Thanks.</p>