Aqua is the Latin word for water, and we use it in English to describe things related to water or to name a light greenish-blue color, like shallow tropical ocean water on a sunny day.

You'll find aqua hidden in many English words. An aquarium is a water tank for fish. Aquatic animals live in water. An aqueduct is a bridge-like structure that carries water across long distances (the Romans built spectacular ones that still stand today). When something is aquamarine, it has that beautiful blue-green color of clear seawater.

The color aqua sits between blue and green, with just a touch more blue. It's the color you might see looking down into a swimming pool or snorkeling in clear Caribbean water. Artists and designers use aqua to create fresh, clean, ocean-inspired looks.