Is Hermes orange a patent color?

Yes

The use and origin of Hermes orange. During the orange dynasty ruled by William I, the royal color Dutch orange was also William I's favorite color.

It represents warmth, self-confidence, cheerfulness and liveliness. "Orange is like a person who believes in his own strength". The packaging of abstract artist Kandinsky Hermes is beige. Because of the outbreak of World War II and the shortage of materials during the war, they were forced to use the last packing box in the warehouse. The color of this box is Dutch orange.