Cyan (/ ˈsaɪ.ən, - æn /) is the color between blue and green on the visible spectrum of light. It is evoked by light with a predominant wavelength between 490 and 520 nm, between the wavelengths of green and blue.

The meaning of CYAN is a greenish-blue color —used in photography and color printing of one of the primary colors.

The name of the cyan color comes from the Ancient Greek “ kyanos,” which means “deep blue.” This word was used to describe the color of lapis lazuli, a semi-precious stone. This most likely derives from the word “ kuwanna ” – from Hittite, the oldest Indo-European language – meaning “copper blue.”

Cyan is not a shade of blue but a neighboring hue of blue. If you look at a color wheel cyan falls exactly between the secondary color green, and the primary color blue. When the primary color blue, and secondary color green are mixed, it makes a tertiary color: cyan.

The word “cyan” comes from the Greek word kyanos, meaning “dark blue substance.” It was first used as a color name in English in the year 1879. According to the Oxford English Dictionary, cyan is defined as “a greenish-blue color.”