I’m using… (although I’ve tried other things)
Before I I tried, it looked like this..

tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 70, 44.01)];
//tools.backgroundColor = [UIColor blackColor];
//tools.backgroundColor = [UIColor clearColor];
//tools.barStyle = UIBarStyleBlackTranslucent;
tools.barStyle = UIBarStyleBlackOpaque;
This looks like this….

How can I match the navigation bar black opaque scheme ?
Assuming you are trying to add a UIToolBar to a black opaque navigation bar as your pictures show, this blog post seems to provide the answer you’re looking for:
http://blog.blackwhale.at/tag/uibarstyleblackopaque/
(Mirrored in case the blog goes away: http://miro.ir/xB8fW/blog-blackwhale-at_tag_uibarstyleblackopaque_)
It shows how to make a transparent UIToolBar that you can place on a black opaque UINavigationBar.