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# What value should I give to the description constant ??

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

```let description: String

init(red: Double, green: Double, blue: Double, alpha: Double) {
self.red = 86.0
self.green = 191.0
self.blue = 131.0
self.alpha = 1.0

self.description = "red: \(red), green: \(green), blue:\(blue), alpha: \(alpha)"

}
```

}

structs.swift
```struct RGBColor {
let red: Double
let green: Double
let blue: Double
let alpha: Double

let description: String

init(red: Double, green: Double, blue: Double, alpha: Double) {
self.red = 86.0
self.green = 191.0
self.blue = 131.0
self.alpha = 1.0

self.description = "red: \(red), green: \(green), blue:\(blue), alpha: \(alpha)"

}

}
``` Hey there,

the only thing that's "wrong" in your `description` constant is the missing space between the colon after blue and its value. However the other problem is that you shouldn't hardcode the values in your initializer but you should give the stored properties the values that are passed in through the struct's initializer.

Like so:

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

let description: String

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

self.description = "red: \(red), green: \(green), blue: \(blue), alpha: \(alpha)"

}
}
```

I hope that helps, if you have further questions feel free to ask! :)

Thank you Tobias