16进制rgb转换

定义：16进制rgb转换

#define HEXCOLOR(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

使用：

//{"#f0f0f0","#e2f1fa","#dcf8eb","#f6eed4"};

self.view.backgroundColor = HEXCOLOR(0xf0f0f0);