Johnnie Walker Blends
Red (nas)
Black (12yr)
Double Black
Swing
Green: (no grain whisky) 15yr. Talisker, Cragganmore, Linkwood, and Caol Ila. and others
Gold (nas now, originally 18yr)
Platinum
Blue: (nas but supposedly min of 28yr)
two grain distilleries and 25+ single malts
rumor - mostly Royal Lochnagar
Speyside and Highland distilleries - Cardhu, Clynelish, Benrinnes