Applying Condition Formatting for Text Values

Hello,

I was trying to apply conditional formatting to text values. 

I have a matrix like:

I tried to apply conditional formatting to colour code according to the text using the measure:

Colour = 

var selected = SELECTEDVALUE(table1[Column1])

return 

if(selected = "Low", "green", 

   if(selected = "Moderate", "yellow",

      if(selected = "High", "orange", 

         if(selected = "Very High", "red", "white")))

I tried using the same measure for every column but it gives the colour code according to Column1 since that is what I defined in the measure (DAX). I have more than 50 columns in the matrix and would have to create a measure for each of them. Is there a way to create just a single measure that can be applied to all 50 columns instead (like dynamically select the column)? 

Thank you!