This is a picture of sun rays shining underneath water. I chose this picture because I thought it was really beautiful with the streaks that the light made through the water and the shadows that the light created on the sand.
Basically anything from ice cream green - Tiffany blue and anything in between but Aqua/turquoise is a safe bet for a color. Any shade bright or light.there will be something similar and blend able for either gender.
This Southern California all glass tile swimming pool utilizes Lightstreams Gold Iridescent Collection Aquamarine glass pool tile, with the pool steps edged with Lightstreams Red River Jewel Accent 90 degree bent glass trim tile.