Cute Young Blonde Girl In The Summer House Reveals In The Cyan Dress

In The video game Star Wars: Knights of the Old Republic II: The Sith Lords, Cyan is the rarest color crystal- never appearing in a lightsaber that you are given and will never appear in a predetermined spot - the only way to get it is by a random crystal popping up.
The default background color of the TI-99/4A operating system and TI BASIC is cyan.
In the Dragonlance series, the evil green dragon Cyan Bloodbane is referred to several times.