What color grout to choose – a contrasting or match the tone?
Use a white epoxy grout. It is very resistant to dirt and scratches.
Working with epoxy grout requires a lot of skill and experience. I would not recommend it if you are going to do the grout yourself without experience.
The grout on the floor should be either gray or brown.
1. Laying epoxy grout without experience is the risk of a lot of unpredictable problems.
2. Gray epoxy grout is the best choice. Made by a craftsman with experience.