Is there a method whereby I can have a input a date in a cell and it will automatically change the row colour? I am tracking a workflow process.

For example,
if I input a date into cell C7, then row 7 would change all cells to be colour 'LIGHT BLUE'.
if I then, input a date into cell D7, then row 7 would change all cells to be colour 'YELLOW'.
if I then, input a date into cell E7, then row 7 would change all cells to be colour 'GREEN'.
etc, etc...

Any ideas on the best way to do this?