Get color from point, you specify a CGPoint, the function returns that point as a UIColor to you. - Swift 5.2

UIView+Extension.swift

extension UIView {
    
    func getColourFromPoint(point:CGPoint) -> UIColor {
        let colorSpace:CGColorSpace = CGColorSpaceCreateDeviceRGB()
        let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedLast.rawValue)
        
        var pixelData:[UInt8] = [0, 0, 0, 0]
        let context = CGContext(data: &pixelData, width: 1, height: 1, bitsPerComponent: 8, bytesPerRow: 4, space: colorSpace, bitmapInfo: bitmapInfo.rawValue)
        context?.translateBy(x: -point.x, y: -point.y)
        if let _context = context {
            self.layer.render(in: _context)
        }
        let red:CGFloat = CGFloat(pixelData[0]) / CGFloat(255.0)
        let green:CGFloat = CGFloat(pixelData[1]) / CGFloat(255.0)
        let blue:CGFloat = CGFloat(pixelData[2]) / CGFloat(255.0)
        let alpha:CGFloat = CGFloat(pixelData[3]) / CGFloat(255.0)
        
        return UIColor(red: red, green: green, blue: blue, alpha: alpha)
    }
    
}