UITextfield UIDatePicker inputView very dark - ios

Question

I have a UITextField that needs to show a UIDatePicker with a UIToolbar in above to close it.
I set the UIDatePicker to the textfield's inputView, and the UIToolbar to the inputAccessoryView.
This works fine, but by default i get weird color effects. The inputAccessoryView is translucent as one would expect from iOS7, however the inputView appears to have a black background behind it that is then made translucent. This leaves it with the inputView much grayer when the background color is set to the same as it is in the inputAccessoryView.
Here is my code:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIDatePicker *datePicker = [[UIDatePicker alloc] init];
datePicker.backgroundColor = [UIColor clearColor];
[self.someTextField setInputView:datePicker];
UIToolbar *pickerToolbar = [[UIToolbar alloc] init];
pickerToolbar.backgroundColor = [UIColor clearColor];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:nil];
pickerToolbar.items = #[doneButton];
[pickerToolbar sizeToFit];
self.someTextField.inputAccessoryView = pickerToolbar;
}
This results in an image like this (with the main view's background colors set in InterfaceBuilder):
You can see the red and green showing through both, but the UIDatePicker is much darker.
If I change both from clearColor to whiteColor, I get this:
Here you can see the inputAccessoryView is still translucent (though less so), but the inputView is pure white. If it is translucent it is a LOT less, and I can't see it anymore.
How can i make them both transparent? As is, difficult without just making both entirely opaque. I want to keep them translucent to follow iOS7 guidelines, but not if it will give me that muddy dark version like in the first screenshot.