The brand is ending its license with Holy Fashion Group, which has produced the range since its European launch in October 1998.
Tiffany’s brief, called an amicus curiae, focuses on the notion that a color can be trademarked.
More than two-thirds of retailers surveyed are expecting increases of 15% or more online.
The 20 fashion illustrations, many of which date from 1950, are of dresses by Dior, Balenciaga, Castillo for Lanvin and others.
The event, benefiting amfAR and the Dallas Museum of Art, reaped a record $4.8 million Saturday.
King Harald V and Queen Sonja of Norway were the guests of honor at the annual gala at The Pierre hotel.