I need to bind the SelectedColor property of ColorPicker to a custom color which is not present in available colors. I created a simple test to show my problem. My xaml:

<xctk:ColorPicker SelectedColor="{Binding Path=Test}"></xctk:ColorPicker>

Code behind (CurrentStyle.PenColor returns an integer value which equals 13109765):

  public Color Test
  {
      get;
      set;
  }

  public MyClass()
  {
     DataContext = this;

     Test = Color.FromArgb((byte)((CurrentStyle.PenColor >> 24) & 0xFF),
               (byte)((CurrentStyle.PenColor >> 16) & 0xFF),
               (byte)((CurrentStyle.PenColor >> 8) & 0xFF),
               (byte)(CurrentStyle.PenColor & 0xFF));
     InitializeComponent();

  }

And that's how my ColorPicker looks like when the window is loaded (I don't have enough rep to post images so it's just links):

http://s22.postimg.org/frzh2fgy9/image.png

Though, when I go to Advanced colors I can see that the color has been recognized and set correctly. Here is a pic:

http://s13.postimg.org/gjv4cmy07/image.png

Hope for your help. Thanks a lot!

EDIT

I implemented INotifyPropertyChanged, still to no avail. Here's the code:

public Color Test
    {
        get
        {
            return test;
        } 
        set
        {
            if (test != value)
            {
                test = value;
                OnPropertyChanged("Test");
            }
       }
    }


public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string prop)
    {
        if (this.PropertyChanged != null)
            this.PropertyChanged(this, new PropertyChangedEventArgs(prop));
    }

Maybe I'm doing smth wrong here.