Simple background color problem, help me?

Hi,

All I am trying to do is change the background color of the body and the grey strip behind the the sidebar that goes all the way down the footer.

I change this in the style.css of the themes > default folder (i am going with the default Kubrick theme) code and the body background color does not change:
/* Begin Typography & Colors */
body {
font-size: 62.5%; /* Resets 1em to 10px */
font-family: ‘Lucida Grande’, Verdana, Arial, Sans-Serif;
background-color: #d5d6d7;
color: #333;
text-align: center;
}

and I can’t even find where to change that grey strip (it is not the actual menu sidbar code, I change that code and the menu area changes color but there is that grey that goes all the way to the bottom)

If anybody can save me the pain of sorting through all the code just to change these colors I would be very much appreciative.

thank you.