Bronze toned tiles would complement the veins in your stone. Found two - one at Floor & Decor, one at Wayfair. See if this color looks good. I searched under “bronze tile”.
The other option is finding a simple white tile that is close to the stone color. That would also be pretty.

A few ideas

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counter is not that dominant. cabinets all in one shade.....means go a little bolder w backsplash..bring home lots of various styles....there are many things that will work.

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Hex Tile Backsplash in Glossy Navy Blue · More Info

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I love the bold blue colors. My floor is a darker brown, and all of my cabinet poles and fixtures are gold or really cold honey bronze. I will have blue in my accessories and maybe window treatments nearby rug in the dining area. I’m a little afraid to go bold in the backsplash in case I get tired of it and I’m thinking about keeping it a neutral beige just a little bit darker than the cabinets. The plan is to color into the accessories and overtime if I get bored, I can change the color schemewithout having to change permanent fixtures. Do you think it will look too bland, having the backsplash, a neutral, beige?

• cabinet pulls and knobs ( not poles)

kitchen is large with a LOT of the pale color between counter and cabinets. I would do something visually at the backsplash area. But there are tons of ways to do that. Bring in samples and see what happens. I Get a more traditional vibe from your pretty kitchen...... like these tiles if nervousness about too much color/pattern sets in...

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You can go in many directions, but I would not do anything just yet. Wait till your floors are in and your kitchen is done. Only then you should get samples of tiles and see which you prefer. Backsplash tiles are the last thing that gets installed and it’s not a messy job.

Beautiful cabinet color and counter! Lots of good ideas for backsplash submitted above.

Run the countertop up the wall. Avoids stressing over whether the backsplash matches and looks great always.

Holding some samples against wall- thinking light blue instead of staying with monochromatic beige ( thanks to your advice). Not sure if you can see options clearly but curious on your thoughts. Post below shows my front runner- thoughts ??

Front runner
I’ll have blue accessories and in window treatments
Any thoughts?

Thinking subway ( not square)- and unfortunately color isn’t 100% accurate but light blue

i like a few of them ......including the couple darker subway tiles propped up......but anyway changing the white grout they have shown to the background of your counter color .....using your favorite one will work fine...... things stay soft in that shade , yet you get the color without upstaging the pretty counters , which the darker ones might do. Just gaze at them for a few days , different light , and youll know...we cant do that on our screens. You're getting close...the blue, if you find the right one is really attractive.

I think you're on to something.....here is a pale blue tile splash..... [ more textural tho] .... shown with even busier counters ......and it works .... easy to love the blue shade...

South Padre Island · More Info

I like the pale blue subway tile on the far left.

ooh la la .....that looks gorgeous so far.

yes yes yes i agree...backsplash is looking gorgeous!

Wow, love it!

It’s already looking great and it’s not even done!

Have you considered using the same slabs as the backsplash. Hard to imagine what could be better. Except...the cost. I use solid stone whenever possible. It sets your house apart.

I see I added comment too late ;)