Allot specific color to each category in pie chart

[nikhil_9]

I want to assign specific color to each category in pie, For eg- Fraud (Red),Not Fraud(Green), No response(yellow). If I change color through chart formatting->Color palette it gives color in series. It doesn't apply color to a specific category. If suppose 1 category is missing from pie chart then it will allot 1st color of series to anther category which creates a problem. Can anybody please help me solve this problem? 

Thanks in advance.