From Longman Dictionary of Contemporary Englishcyancy‧an /ˈsaɪən $ ˈsaɪ-æn, -ən/ adjective technical CChaving a dark greenish-blue colour —cyan noun [uncountable]
Examples from the Corpus
cyan• There came a time when he doubled back after the others had gone on the trail taking their cyan hardness with them.• Primary colours cyan, magenta and yellow.• The cyan sheet would, of course, be blank.Origin cyan (1800-1900) Greek kyanos 