We have Oklahoma Flagstone on our patio so the travertine is going to butt up against it.
Updated Photo. These are the ones we've narrowed down to:
first two on top left are lightstreams steel blue. Next on the top of lightstreams turquoise, final on top right is Arctic Lagoon. Bottom Right is Lightstreams Aqua and then underneath is our choice of Blue Surf, sitting next to Prism Blue which we thought we'd compare. I've wetted both, but unfortunately don't have the raw tiles, only on the backing.
Image 1 is the National Pool Tile Arctic Lagoon
Image 2 is lightstreams glass gold iridescent steel blue
Image 3 is the those two next to a few options from Noble Tile
Sun is coming down at 4pm so it did cause some glare!