Measures in donut chart visualisation

Hi,

I have a report that I'm creating to show the current week and then the previous 4 weeks using the measure below but changing -1 to -2 and so on.

Weeks-1 =

var selectedweek =SELECTEDVALUE('Dashboard Data'[Full Date])
var week = LOOKUPVALUE('Dashboard Data'[Week],'Dashboard Data'[Full Date],selectedweek)-1

return

CALCULATE(SUM('Dashboard Data'[Accident Total]),ALL('Dashboard Data'[Full Date]),'Dashboard Data'[Week]=week)

The current week I can put into a donut of Legend and Values, using compliant or not complaint 1 & 0 for red and green. However I cannot do this for the measures week-1, week-2, week-3 and week-4? I can only put the value into Values and not Legend to change the colour of the donut?