How to make colors different for the different axis in case of donut chart?

Once you have created the donut chart, next what you have to do is drag the dimension into the color self. As you can see in the below image, This chart is based on the region and so we have dragged the regional dimension into the color self. As we know the donut chart can be created by making the dual-axis on the pie chart and with the little formatting. And so, when you are putting the region into the color shelf, make sure to put it on the first pie chart and this way you will be able to get the desired result.