<Grid>

<dxc:ChartControl Grid.Row="1" Grid.Column="1" Width="40" Height="40" x:Name="_chartCtrl" EnableAnimation="True" Visibility="Visible" BorderThickness="0" Background="White">

<dxc:ChartControl.Palette>

<dxc:CustomPalette>

<dxc:CustomPalette.Colors>

<Color>#FF00CCFF</Color>

<Color>#FFD7D7D7</Color>

</dxc:CustomPalette.Colors>

</dxc:CustomPalette>

</dxc:ChartControl.Palette>

<dxc:ChartControl.Titles>

<dxc:Title Dock="Top" HorizontalAlignment="Center" FontSize="1"/>

<dxc:Title Dock="Bottom" HorizontalAlignment="Right" FontSize="1" Foreground="Silver" />

</dxc:ChartControl.Titles>

<dxc:SimpleDiagram2D >

<dxc:PieSeries2D x:Name="Series" ArgumentScaleType="Qualitative" HoleRadiusPercent="75" Rotation="0" SweepDirection="Clockwise" Margin="-15,-32,-15,-25">

<dxc:PieSeries2D.Model>

<dxc:BorderlessFlatPie2DModel/>

</dxc:PieSeries2D.Model>

<dxc:PieSeries2D.PointOptions>

<dxc:PointOptions PointView="ArgumentAndValues">

<dxc:PointOptions.ValueNumericOptions>

<dxc:NumericOptions Format="Percent" Precision="0" />

</dxc:PointOptions.ValueNumericOptions>

</dxc:PointOptions>

</dxc:PieSeries2D.PointOptions>

<dxc:PieSeries2D.Label>

<dxc:SeriesLabel dxc:PieSeries.LabelPosition="Inside" RenderMode="RectangleConnectedToCenter" />

</dxc:PieSeries2D.Label>

<dxc:SeriesPoint Argument="占用数" Value="27" x:Name="_spUsageCount" />

<dxc:SeriesPoint Argument="总数量" Value="81" x:Name="_spFreeCount" />

</dxc:PieSeries2D>

</dxc:SimpleDiagram2D>

</dxc:ChartControl>

<StackPanel Grid.Row="1" Grid.Column="1" Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">

<TextBlock x:Name="_tbUsageCount" Text="27" Foreground="#FF00CCFF" FontSize="11" FontFamily="Arial" HorizontalAlignment="Center" VerticalAlignment="Center"/>

<TextBlock x:Name="_tbFreeCount" Text="81" Foreground="Black" FontSize="11" FontFamily="Arial" HorizontalAlignment="Center" VerticalAlignment="Center"/>

</StackPanel>

</Grid>

运行效果如下：

DevExpress ChartControl Pie 颜色设置