I would choose the darker one as the lighter one is going to end up looking like the darker one eventually unless you like scrubbing grout. :-) Unless there is an interesting pattern in how the tile is laid there is nothing to be gained by using a contrasting grout.

The darker one. Grout always dries just a bit lighter than those sample sticks.

I vote for the darker grout as well.

Yup darker

Darker. We chose ours to match the tile… once dry… it was lighter. We had to seal the grout to get the color right.

Dark. BTW are you using this on the shower walls too?

The shower walls are a porcelain, marble "look", warm white background with grey & brown veining through it. The floor tile is installed now and the 1/16" cracks look black before grouting. I'm surprised to kinda like the look. Maybe black is the way to go? Photos below of the floor without grout, the wall tile, the shower floor, and the mosaics for the niches and backsplash above the vanity. Still need to decide light or dark grout for the shower floor and also for the mosaics. Sorry for all the questions. Your answers are super helpful! Thank you all!

so much!

The grouting is not done, but is on this week's schedule (my tile guy got sick, holidays were busy, I traveled, etc.). No one has commented on my last post, so I'm asking again. I think maybe a black grout for the floor tile as I like the look right now, (see the pic above showing the tile with no grout yet, but spacing looks black.) Does this make sense?

Second question - The last pic is the tile for my Tub & Shower niches as well as the backsplash above the vanity. Would the light grout be best (it matches the grout for the shower walls and walls surrounding the tub.) Or should I highlight the bronzy edges of the tiles with a similar, bronzy color?

Third question (I can't tell you how helpful it is to hear from others!) - I initially thought I'd take the backsplash tile all the way to the ceiling, but I now think it will be too much. The tiles are small and the shape and varying colors are busy. Since my bathroom is small (81 sq. ft.) I wonder if I'd be better with a 12"-18" backsplash, and light painted wall from there to the ceiling.

Thank you, thank you, thank you!!!