How can I change the tintColor of an unselected UITabBarItem title and background image iOS 8?
The default color for an unselected state is a light gray color, but
You can also set it up directly in Storyboard... Check my answer here: How to set UITabBarItem's unselected tint, ***including system items*** (iOS7)
If you're using Storyboard you can also set both
ImageforBar ItemandSelected ImageforSelected Bar Itemto get unaltered image in tabBar.
Alternatively in Assets catalog, you can select Render As: Original Image in the attributes of your image (View > Utilities > Show Attributes Inspector or shortcut ⌥⌘4 (Option + Command + 4))