I'm not understanding why my custom initializer is not correct.

Hi there! You've got a few errors here, but don't seem to be too major so I'm going to try first with some hints.

• Your struct ends before your init begins. Check your closing curly brace on your struct
• The initialization of your properties is incorrect. For instance you should have self.red = red
• The initialization of the description is missing entirely from your init

The instructions state that the description should be initialized to something that looks like this:

"red: 86.0, green: 191.0, blue: 131.0, alpha: 1.0"

This is just an example. Do not hard-code these values. My suggestion here is to use string interpolation to get the desired results.

Hope this helps, but let me know if you're still stuck!

You have to add the code inside the struct curly brace

struct RGBColor {
    let red: Double
    let green: Double
    let blue: Double
    let alpha: Double

    let description: String

    // Add your code below

   init(red: Double, green: Double, blue: Double, alpha: Double){
        self.red = Double
        self.green = Double
        self.blue = Double
        self.alpha = Double

        }
}