That s the same exact grout color warm gray everywhere in the picture above although it looks grayer when it s next to the white subway tile and lighter when it s next to the dark floor tile.
Best grout color for white marble tile.
White grout is a risk in bathrooms though as everyone mentions.
I went with tec standard white grout and it came out very yellow or antique white against the tile.
Use a non sanded grout to protect both the marble and the grout from discoloring too much.
Grout color has a large impact on the appearance of a tiled wall counter or floor.
For anyone checking back on this i am having a new house built and had a carrara marble 3x6 subway tile backsplash put in the kitchen with absolute black granite.
White marble turned gray color grout for carrara marble marble hexagon with mapei silver grout images master bath laticrete silver shadow with carrara marble basket weave tile that hampton carrara marble backsplash done zo chris loves julia tech silverado grout color pebble shower floor marble.
For the white subway tile on the shower walls i selected a white slightly off white grout and for the marble basketweave floors i selected the closest color match to the color of the stone.
Cabinetry and countertop are white too but i ve already picked a nice blue green wall color and some fun colorful decor and accessories.
The light gray is also a fine choice but keep in mind that it will darken and maybe not match the tile color quite as well over time.