Cloud, Blue, Abyss

Seafoam, Teal, Abyss

Ocean from surface to floor

Seafoam, Jade, Abyss

Tropical water from surface to deep

Ice, Aqua, Deep Teal

Cold water from solid to liquid to deep

Pale Aqua, Teal, Midnight

Still waters deepening

Pale Blue, River, Deep

Water in three states of depth

Three Blues

Sky, sea, and depth