Wikipedia:Articles for deletion/Unique hues
The concept is well-established: see ''http://books.google.co.uk/books?id=-fNJZ0xmTFIC&pg=PA153 The Science of Color'', for example.  The frequencies of light which correspond to this may be experimentally determined – see http://books.google.co.uk/books?id=_jYvSMODNiMC&pg=PT457#v=onepage&q&f=false Unique hues - Perception and brain imaging, for example.  That experiment indicates that the sensation is produced within the visual cortex but that the mechanism is not fully understood.  In the circumstances, the nomination seems to be tendentious but the nominator has not yet troubled to take his objections to the article's talk page.  Please see 
— User:Colonel, 13:25, 17 January 2013 (UTC)
Stance: keep
Cited policy: WP:BEFORE (Wikipedia:Articles for deletion)