Cyan is a color between blue and green. Cyan is one of the primary colors in the CMYK subtractive color system, along with
Magenta,
Yellow, and
Key black. Because it is a primary color, it is often used in color printing.
The word cyan derives from the Ancient Greek Kyanos, meaning "dark blue, dark blue enamel, lapis lazuli",
according to etymonline.
The correct pronunciation of cyan is SY-uhn.
When pronouncing cyan, the stress is placed on the first syllable. The "cy" in "cyan" is pronounced like the "si" in the word "sign". The last syllable "an" is then pronounced with a short "u", rather than pronouncing it with a short "a".