Tiffany Blue is the colloquial name for the light medium robin egg blue color associated with Tiffany & Co., the New York City jewelry company. The color was used on the cover of Tiffany's Blue Book, first published in 1845. Since then Tiffany & Co. has used the color extensively on promotional materials, including boxes and bags.
The Tiffany Blue color is protected as a color trademark by Tiffany & Co. in some jurisdictions including the U.S.
The color is produced as a private custom color by Pantone, with PMS number 1837, the number deriving from the year of Tiffany's foundation. As a trademarked color, it is not publicly available and is not printed in the Pantone Matching System swatch books.
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