You're looking for a gray with pink undertones (that's the hard part). This is Fireclay Tile in Wrought Iron and Boulder, and Fireclay Thin Brick in a bunch of colors that would look great, but it is brick not tile, These are the glazes you're looking for.

Great colours - thank you!

You're welcome. I hope they help you find what you're looking for. I also really recommend you wait until the counters are installed before you make your final choice. Materials can look so different once they're installed.