How to compare a color in swift

Try CGColorEqualToColor(_ color1: CGColor!, _ color2: CGColor!) -> Bool.

I've come up with this in a playground, I've assigned the backgroundColor property of the UICollectionViewCell with a UIColor and then created a UIColor from it's layer.backgroundColor CGColor property:

let blue = UIColor.blueColor()

let collectionCell = UICollectionViewCell()

collectionCell.backgroundColor = blue

let cellLayerBgrndColor = UIColor(CGColor: collectionCell.layer.backgroundColor!)

if blue == cellLayerBgrndColor {

print("equal") // Prints equal
}

extension CGColor: Equatable { }
public func ==(lhs: CGColor, rhs: CGColor) -> Bool {
    return CGColorEqualToColor(lhs,rhs)
}
let color1 = UIColor(hue: 0, saturation: 1, brightness: 1, alpha: 1).CGColor
let color2 = UIColor.redColor().CGColor

print(color1 == color2)   // "true\n"