Excel - programm cells to change colour based on another cell

Question

I am trying to create a formula for Excel whereby a cell would change colour based on the text in the previous cell.

So for example if cell B2 contains the letter X

Answer 1

Select ColumnB and as two CF formula rules apply:

Green: =AND(B1048576="X",B1="Y")

Red: =AND(B1048576="X",B1="W")