group style tableview background color in ios 7

#get color with

1	UIColor *result = self.tableView.backgroundColor;

#group style tableview background color in ios 7

1 2	[UIColor colorWithRed:0.933 green:0.933 blue:0.957 alpha:1.000] //hex : EDEDF4

#ios 8

1 2	[UIColor colorWithRed:0.937255 green:0.937255 blue:0.956863 alpha:1.000] //hex: EFEFF4