
Tiffany Blue, the most popular robin’s egg blue, is a trademarked color of Tiffany & Co., which bears the same number (1837) on the Pantone Matching System (PMS) as the year Tiffany & Co. was founded. The private custom color (created in 2001) Pantone 1837 is not publicly available and is not printed in the Pantone Matching System swatch books.
Hex#: 81D8D0
RGB: 129.216.208
CMYK: 46.0.23.0
Pantone 1837
Tiffany Blue

Close Match:
Hex#: 77D9D3
RGB: 119.217.211
CMYK: 48.0.23.0
RGB: 89.190.201
CMYK 60.0.25.0
Solid 0821 C
The color was used on the cover of Tiffany’s Blue Book, first published in 1845, when Charles Lewis Tiffany put out a catalog for his “stationery and fancy goods” store at 259 Broadway in New York. Since then Tiffany & Co. has used the color extensively on promotional materials, including their trademark “little blue box” and bags.
Image diagram credit Adweek 09222014