Conditional formatting is based on slicer for Multi-row card

We have a requirement for  conditional formatting in Multi-row card. Here conditional formatting is based on hierarchical objects (roll up) and this should be changed dynamically based on user selection.

Let me explain with you an example :

Hierachy : Region -> Site

Here we calculated site colour based on count of records for that specfic site in power BI and we've below set of rules for Region field and that is dependent on site column

For example  if Color percentage >=40 (1st priority) then Region color should be Orange 

else If Color percentage >=40 (2nd priority) then Region colour should be yellow else Green.

We acheived the conditional formatting for site column but unable to implement  for Region slicer.