Hi! I had picked new kent gray porcelain wood like tiles from floor and decor for my kitchen (which is going to be white uppers and navy lowers). Kind of going for a rustic vibe. I didn't realize I had to choose a grout at that time and now my contractor is pressuring me to pick one from home depot. I'm leaning towards chateau (which is the customs brand) since I don't want such contrast- want the tiles to blend into each other so it looks light and natural looking. Should I go even lighter?