How to change cell colour, if the colour is based on value from formula?

Hi guys,
I am trying to accomplish the following.

Tab 2: The priority of a service is determined (1,2,3 or 4), see L11-L14.
Tab 5: The value calculated in tab 2 L11-L14 is linked and displayed in tab 5 B7-B10. I now want to use the value displayed in B7-B10 to determine the colour changes in C7-C10, D7-10, E7-E10, F7-F10 as shown in the attachment. I looked up the conditional formatting rules for it but unfortunately I did not work as excel does not recognise the number in the cell but the formula.

I attached the file at it probably explains it better than I ever could in words. I coloured in the cells how I would like them in tab 5.

It is frustrating as I know exactly what I want to do and where the problem lies but I can't come up with the solution.
Has anyone of you an idea how to accomplish the colour change?