UITableView - change section header color

Question

How can I change color of a section header in UITableView?

EDIT: The answer provided by DJ-S should be considered for iOS 6 and above. The accepted

Answer 1

iOS 8+

func tableView(tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
        tableView.tableHeaderView?.backgroundColor = UIColor.blue()
}