New Post: How can I bind my colors with chart items?

Really? Have you guys even looked at the sample application?

Why aren't you setting the Palette property on the Chart, like in :

<chart:RadialGaugeChart Style="{StaticResource MinimalChartStyle}"
                                            Grid.Column="0"                                           
                                            Palette="{StaticResource OverallChartColors}"                                            
                                            SelectedBrush="Transparent">

You define color palettes and you set them to the charts that you want. This absolutely makes the colors consistent over a number of different graphs. You guys need to look at the source of the sample application.