My master shower will have a darker floor tile (American Olean Danya Riverbed) and the walls will have a lighter tile, Danya Cove. There will be an accent band of 5/8 squares Cappucino. I want to have a lighter grout on my floor to pull it into the entire shower look. Do I need to make the grout in the 5/8 accent the same as the lighter tile or do I just match according to the actual 5/8 tile? It won't be that much different but I wasn't sure if I was getting too many grout colors.