Help me choose a grout for my pool waterline and spa surround (in pool spa) tile. I’ve attached a picture of the blue watercolor series glass tiles we’ve chosen with two Laticrete options—Smoke Gray (darker)or Silver Shadow (lighter). Also shown is the Hydrazzo we’ve chosen in Gulfstream Blue. The samples are laying on the coping, which is concrete pavers which will be sealed.

I am leaning towards the smoke gray to blend in a touch more and seems to tie in the coping color and hydrazzo best. Perhaps will age better? The clean look of the silver shadow is nice too.

Let me know what you think!
Smoke Gray or Silver Shadow