Thanks for the response. Not to steer you the wrong way, but I was about to go with North Shore Caribbean. That was until I saw a pool with it. To me, it looked too brown, not as much blue as I wanted, and a bit dark. I am going after the closest match to true Caribbean water. I am now between Satin Matrix Kiwi Blue, the Luna Quartz Aruba, and Martinique.
I have seen a pebble sheen in cool blue, and that is amazing. I am trying to find a pool with Kiwi Blue.
My wife says I am obsessed with the pool color, and I have to agree!
Best of luck to you