Taken from the blue-green color word, from Greek kyaneos meaning dark blue.
Cyan derives from the ancient Greek kyanos (κύᾰνος), meaning "dark blue" or "blue-green," a word that ancient Greeks applied to the deep color of the sea, lapis lazuli, and certain minerals. The word traveled into Latin and then into the European scientific vocabulary, where it became the technical term for the blue-green component of light — familiar today from the CMYK color model used in printing, where cyan is one of the four fundamental colors. The Greek root also gave English the word cyanide, named for the prussian-blue compounds it produces, as well as the prefix cyano- used across chemistry and biology.
As a given name, Cyan belongs to the modern tradition of color names — a category that includes Violet, Scarlet, Amber, and Indigo, all of which have established themselves as genuine names over the past century. Cyan is the newest and most unconventional of these, emerging primarily in the late twentieth and early twenty-first centuries as parents became increasingly drawn to names that evoke natural phenomena, the visual world, or simply beautiful sounds. The color itself — that vivid blue-green of tropical water, glacial ice, and clear morning sky — carries associations of freshness, clarity, and calm.
Cyan gained unexpected cultural recognition through the online multiplayer game Among Us, which became a global phenomenon in 2020 and featured a player character named Cyan as one of its most popular and discussed roles — a small but genuine pop-culture moment that introduced the name to an enormous young audience. As a given name, Cyan remains genuinely rare, which is part of its appeal: it is immediately recognizable as a word, immediately beautiful as a sound, and carries a lightness and originality that more established names cannot offer. It suits a child whose parents want to name them after something luminous in the natural world.