The smart fashionable male needs an extensive color vocabulary. Talking colors has become even more important now that menswear designers are introducing quirkier shades in unexpected combinations. Men who are forever bonded to blue shirts, navy blazers and green golf pants needn't be concerned. It is the men who are prepared to be more adventurous in their wardrobe selections who will be speaking with varied inflections. Purple can be called grappa, ultraviolet, eggplant. Yellow may go by chrome, mustard or canary. Greens and blues have been melded into shades of mint, aquamarine, parrot, celadon. Even traditional gray is being called platinum, malachite, steel.