Indeed. Moreover, I'm not (so) ancient and the words made sense to me instantly with no dissonance. Deep sea is purple and dark. Some wines are also purple-lean

Indeed. Moreover, I'm not (so) ancient and the words made sense to me instantly with no dissonance. Deep sea is purple and dark. Some wines are also purple-leaning. The association is very obvious unless you insist in "wines are red, seas are blue" or you come to analyze verses with a spectrometer.