For various reasons you may want to convert the Color type to a String. And, below is a relatively cleaner way to do it.
import SwiftUI
extension Color: RawRepresentable {
    
    public init(rawValue: String) {
        guard let data = Data(base64Encoded: rawValue) else {
            self = .gray
            return
        }
        do {
            let color = try NSKeyedUnarchiver.unarchivedObject(ofClass: NSColor.self, from: data) ?? .gray
            self = Color(color)
        } catch {
            self = .gray
        }
    }
    
    public var rawValue: String {
        do {
            let data = try NSKeyedArchiver.archivedData(withRootObject: NSColor(self), requiringSecureCoding: false) as Data
            return data.base64EncodedString()
        } catch {
            return ""
        }
    }
}
You can use it like:
var rawColor: String = Color.blue.rawValue
var someColor: Color = Color(rawValue: rawColor)