My advice is to re think the flooring, or re think the counter tops and set aside ANY tile for backsplash decision............until the tops are INSTALLED. You can't do tile until tops are installed. Do not end with a beige /gray conflict is the point. Nobody here could POSSIBLY make the decision or advise, particularly with no photo of the flooring. Which should be reconsidered and possibly be same as flooring in the rest of your home, or IS same, but we don't know that either : )

I'm concerned about the flooring and countertops. Beige and grey will clash. The backsplash decisions should wait to be made until after the countertops are in, but I strongly suggest you rethink either the flooring or countertops first.

My advice is to post photos of these tiles alongside the other choices you've already made. Otherwise you're getting advice from people who basically know nothing about how these tiles will look in YOUR kitchen.

Hello

Thank you for the suggestions. Here's a photo of the current kitchen that we are updating. At this time we don't plan on changing the floors (maybe at a later time). But the countertops, backsplash and cabinets are being updated. We will also have new stainless steel appliances.

To you think this flooring will look odd with the rest of the updates detailed in the original question.

Countertop - https://www.bedrosians.com/en/product/detail/sequel-quartz-slab/?itemNo=SEQMONGRYSLAB2P
The countertop seems very dark gray in the above picture, but it looks something closer to the following photos (courtesy Houzz) in real

You are not listening......................... change the floor or change the counter. Gray tone counter tops do not work......everywhere. You may even end up with that floor looking pink/beige Adding a gray toned splash isn't going to help.