For its boxes, Tiffany chose a shade of this primary color, recognized as a trademark today
Shades of cyan... [DOC] [TLE] Tiffany & Co. For The Press | About Tiffany & Co. | Tiffany Blue ... [PAR] The objects of their dedication are milestones in the evolution of American design 
and ... blue, this distinctive color may have been chosen because of the 
popularity of the turquoise ... Charles Tiffany's coveted box is today an 
international icon of elegance and sophistication.