title: Xamarin.Forms.Color to hex value
body: <p>I have a Xamarin.Forms.Color and I want to convert it to a 'hex value'.</p>
  <p>So far, I haven't found a solution to my problem.</p>
  <p>My code is as follows:</p>
  <pre><code>foreach (var cell in Grid.Children)
  {
      var pixel = new Pixel
      {
          XAttribute = cell.X ,
          YAttribute = cell.Y ,
          // I want to convert the color to a hex value here
          Color = cell.BackgroundColor
      };
  }
  </code></pre>