Legend In Bar Chart With Dynamic measure

Hey guys,

I am having a bit of trouble in some visualisation requriement from the client.

I  have a measure :

Switch = SWITCH(MIN('Table'[Questions]),"Ques1",'Correlation Measures'[Correlation 1],
                "Ques2",'Correlation Measures'[Correlation 2,
                "Ques3",'Correlation Measures'[Correlation 3],
                "Ques4",'Correlation Measures'[Correlation 4],
              )

This has to be plotted on a bar along with a category legend according to the correlation value such as "Highly correlated " or "Low Correlation".
Please help how can i add legend to the bar graph guys?