UITableView: set different background colors for header and the table

I would like to set my background color for my UITableView to white and set my tableViewHeader backgroundColor to grayColor similar to the facebook app. When I bounce scroll my table so that you can see above the header, then currently it is white above the header view. I want that to be brown instead.

In the facebook app, above the headerview, it is a blue color and below the table is a white color. If i try and set the UITableView backgroundColor to brown, then the top will be brown, but so will the bottom. Additionally, all of the unset cells will have a brown background instead of white.

Any help with this?