ColourContentView.swift

import SwiftUI

struct ContentView: View {
  @ObservedObject var viewModel = ColourViewModel()
  
  var body: some View {
    Form {
      Section("Colour 1") {
        Color(red: viewModel.red1,
              green: viewModel.green1,
              blue: viewModel.blue1)
        Slider(value: $viewModel.red1, in: 0...1)
          .tint(.red)
        Slider(value: $viewModel.green1, in: 0...1)
          .tint(.green)
        Slider(value: $viewModel.blue1, in: 0...1)
          .tint(.blue)
      }
      Section("Colour 2") {
        Color(red: viewModel.red2,
              green: viewModel.green2,
              blue: viewModel.blue2)
        Slider(value: $viewModel.red2, in: 0...1)
          .tint(.red)
        Slider(value: $viewModel.green2, in: 0...1)
          .tint(.green)
        Slider(value: $viewModel.blue2, in: 0...1)
          .tint(.blue)
      }
      Section("Scheme") {
        Button("Get Scheme", action: viewModel.getSchemeColours)
        viewModel.schemeColour1
        viewModel.schemeColour2
        viewModel.schemeColour3
        viewModel.schemeColour4
        viewModel.schemeColour5
      }
    }
  }
}