My house is an 1880 farmhouse, and I've got wide pine floors, including in the master bathroom and the half bath. I love it. It's warm in the winter, rustic, gorgeous. Sealed with Waterlox (pic below is not my bath. Pic off the web)

Why not consider still doing the hex mosaic for the floor and the subway for the walls, but step up the appearance by using glass tiles instead? Still farmhouse style, but upscaled.

The look you are going for is what I would describe as subtly elegant. Those rooms are gorgeous and you have wonderful taste.

I love the blue hex tiles with the blue subway, it's a modern and pretty take on a classic style. With blue walls, I would have to agree it may be too much blue. However, what if you added a line or two of the white pencil they've used and had white walls as well? Add some shiney chrome fixtures and I think it would be really lovely and easy to live in.

I wouldn't be afraid to use the blue and if I were in your shoes, it's the option I would choose. I chose a similar blue color for our guest room. I loved the color but had the same fear as you...which is why I put it in that room. Well after it was done, my DH and I realized it was the most soothing and relaxing color. We loved it so much we used it in our master bedroom as well.

Love the blue hex tiles and subway tiles. Agree with lukkiirish. You have a great eye for understated elegance. She seems to speak from experience too, with the blue tiles. I vote for the blue bathroom with white walls or a smoky medium dark charcoal walls (though I have to admit I can't fully visualize it to see if it will work).

I like glass subway, but felt it was too modern for our 1900 beachhouse. So I used a matte glass tile, with color variation, in a 1/3 running bond. I can post a pic later.

I do like the first image though, it's a bit different.

I also agree w Tibb about hardwood, esp if it's there already. In my bathroom in our master suite at home, I also have wood.

I love the marble in your second picture. They did a cream tile floor, but you could do gray.

For your farmhouse, I believe that your first choice would "fit" best.

OK, having posted here several times and having the tile guys working on my own floors now and almost done this is obviously big on my mind now. What if you went with the wood look mentioned above and did wood tile instead?

So far I am loving mine. Yesterday a friend and another person came in our house. The friend said, "they had tile before". She hadn't realized this was tile as well. You can tell, but it isn't immediately obvious to everyone.

Don't just look at the pro pictures. I really don't think they did a good job. Look at the reviews.

I love a all white basket weave on the floor with a coordinating white tile on the walls. It is timeless, looks great with all colors and is period correct for a farm house.

I really like the first pic you posted. I think it is subtle but elegant and neutral enough that you won't get sick of it. About 30 years ago, I saw a French movie where a bedroom was all done in a neutral blue - floors, walls, bedding, etc (La Lectrice, maybe?) It was so beautiful, I've never forgotten it and I'm not a huge blue fan. I think I like the blue in the pic you posted because it is so earthy and warm. If you went with glass tile it would become cooler. Cool is nice too, but my preference is the one you posted.

Thank you all so much for your comments and suggestions! I can't believe I'm spending so much time thinking about tile these days. I had never thought about using wood on the floor (or a wood look tile) so I'll definitely look into that. However, of the three looks I had posted above the blue was my preference so it is nice to hear that others think it will be a good fit. Another idea I had would be to go with the design of the blue photo but use a more neutral tone, say a nice soft color in the beige / gray family like this:

Do you think it would take away from the look I'm going for? Is that just being too safe? The rest of my house is mostly neutral tones so if I did the blue bathroom it really would be the biggest statement in my home. I don't know why but that makes me nervous!

(As an aside, when I got married I chose blue for the bridesmaid dresses. In a moment of honesty I confided in a friend, "I don't know why I chose this color - I don't even like blue!" But in the end they all looked lovely in their blue dresses. I feel like I'm doing the same thing all over again, only this time with tile. ;) )

I like your first idea. Although I love neutrals, I think you will be disappointed if you go with the beige or gray.

I think I'm not a fan of that blue. Are your feeling hesitant because the blue is not quite right?

Me, personally? I would like a tile similar to BM Wythe Blue or BM Sea Salt.

For the era and farmhouse, marble would have been too posh and glass is just out of era. Except for the really rich, bathrooms were simple and utilitarian.

I like the blue - I had something spotted for a similar bath but a much paler blue. It was an inexpensive tile, but a stunning color. They also had a very pale creamy yellow.

Another possibility - use white subway, but lay it in a non-traditional pattern, like herringbone or vertical. Or use a dramatic floor, like an inlaid tile "rug".

I really like the blue! So pretty and serene. I do think you will be disappointed with gray/greige. It won't have the same effect as the blue. You have lovely taste!

I love the blue. I think it is appropriate to the house and lovely.

I would go with the blue over the beige/gray as well. I do think the gray would be playing it too safe. If you look at your more neutral bathroom picks even they have a little more oompf than just the gray would.

The thing that really makes the blue not too much is the rug. There is just enough blue in it to make the rug go into the bathroom, but the more vibrant colors in it tone the other blues down - though even without the rug they wouldn't be too much. I would look for a rug or curtains or something similar in idea and then choose your paint and tile colors using it as a guide.

Nooo, I would stick with the blue, it's what makes that room a star, swap out the color for neutral and instead of looking refined and different it will just look like an every day nicely finished bathroom. (just my opinion)

I love the blue and would never tire of it. Just make sure it's the right blue for you.

I'd pick either a more greyish blue (like the one you have there on the wall) or as a second choice, a tealish blue, like below.

I'm not sure, but on my monitor the floor looks slightly purplish, but that's probably an optical illusion.

Thank you all SO MUCH for your input! I've decided to go with the blue bathroom... let's just hope mine turns out as lovely as the one in my inspiration photo. I've decided to use Fireclay Tile's Mayan Blue:

https://www.fireclaytile.com/tile/colors/detail/mayan-blue/

It is just gorgeous! I'm also going to take lukkiirish's advice to add a few white pencil lines to ease the transition from the tile to the painted wall. Also, like positively_patty mentioned I will be on the lookout for a coordinating rug and/or curtains to pull it all together. It will be a few months until we're finished but I'll be sure to come back to post pictures. I can't thank you all enough for your encouragement!

I can't wait to see it!

Great choice! Please keep us posted.

Yeah! I think you made a great choice, you can't go wrong with that tile, it is gorgeous!!! The pencil lines will be pretty too, you have a great eye, trust it. I can't wait to see how it all turns out, please be sure to show pics when it's done! Good luck!

Gorgeous choice! Can't wait to see final pics.

Sounds lovely. Looking forward to your reveal!