2014, William H. Gass, On Being Blue: A Philosophical Inquiry (page 59)
For our blues we have the azures and ceruleans, lapis lazulis, the light and dusty, the powder blues, the deeps: royal, sapphire, navy, and marine (..)
As far to the west as Monica could see, her world was a sea of fog, … . Above it arched a cerulean sky; as the sun climbed to the zenith, …, the fog gradually took on a bluish tinge.