I doubt it. Can you post a picture? If it’s just the shower area maybe a coordinating tile can work.

Even if you can find it, the dye lot might not match plus you have 8 years of wear on yours.

Facebook marketplace, use your network - email all your contacts, email local second hand shops, some cities have used building materials - like Restore (a division of Habitat for Humanity). As the other poster said, you may have a fading issue. If that is the case, when you find some tiles, call your local hardware store and see if they have a finish that will make them appear "aged" to match the others.

You're not getting matching tile. It's a fool's errand. Make contrast your friend and move on.

The tiler in our condo community room ran out of sequence match. They had some clout with the supplier and were able to locate a match. This was a tile still in production for a job that happened several weeks ago and it took weeks to find them.

8-year-old tile? Forget it.

I did have luck one time with matching some country blue tile at Restore that was probably 20 years old. Someone was cleaning out their basement.

May I ask what is restore?