Make the zone stand out using some contrasting grout for example black tiles with white grout.
Black and white hex tile with gray grout.
If they are you can use some different pattern size or color.
It really makes the white hex tile pop.
White and green shared boys bathroom boasts serena lily dip dyed stools placed on carrera marble hex floor tiles under a window dressed in a green and white geometric roman shade lit by a nickel sconce mounted on white subway wall tiles with gray grout fixed beside a chrome framed vanity mirror.
For practical purposes light or even white grout is okay for a private upstairs bathroom floor that might only see sock covered or bare feet.
Up until the mid 80 s there were only three grouts white unsanded for wall tile and grey sanded or white sanded for floors.
Then a company called l m came out with their line of acid r resistant grouts and included black and an umber brown grout to their line.
Now when you go with a black tile and a white grout you are going to see that visually like with white tile and black grout things start looking a bit busier and you do make out the shapes of the tiles more so than you would if it was all tonal.
You can highlight the shower or bathtub area with hexagon tiles if the rest of the tiles aren t hex.