How can I use the colors of the tags from an Exchange calendar?

How can I use the colors of the tags from an Exchange calendar?
I have included a calendar from our Exchnage. Using Outlook Web App, I have added tags to different appointments and the tags have different colors and labels. I can see the labels in the respective calendar entry, but the colors are wrong. Under menu / tags I can see the tags from Exchange including the correct colors.
How can I use the colors I have set in Exchange also in eM Client?