ForegroundColorLiteral.swift

extension View {
    // foregroundColor(_ colour: _ColorLiteralType) also works but Apple rejects
    // undocumented types that start with an underscore from App Store approval
    func foregroundColor(_ colour: UIColor) -> some View {
        self.foregroundColor(Color(uiColor: colour))
    }
}

struct ContentView: View {
    var body: some View {
        Text("Text")
            .font(.largeTitle)
            .foregroundColor(#colorLiteral(red: 1, green: 1, blue: 1, alpha: 1))
    }
}