iOS7Colors is a simple category on UIColor which provides you some of the standard colors used throughout iOS 7.
The easiest way to integrate iOS7Colors is using CocoaPods. Just add this to your Podfile:
pod 'iOS7Colors', '~> 2.0.0'
Usage is really simple Just include UIColor+iOS7Colors.h
& UIColor+iOS7Colors.m
in your project and import them whereever you need the colors.
#import "UIColor-iOS7Colors.h"
UILabel *label = [UILabel alloc] initWithFrame:CGRectZero];
label.textColor = [UIColor iOS7redColor];
The color values are taken from Louie Mantia's iOS 7 Color Swatches
iOS7Colors is licensed under the MIT-License