So, today as I received an email from UPS, I read the disclaimer at the end and it said:
© 2016 United Parcel Service of America, Inc. UPS, the UPS brandmark, and the color brown are trademarks of United Parcel Service of America, Inc. All rights reserved.
What exactly does it mean that the "color brown" is a trademark of someone? Does it refer specifically to the brown in the logo's arrangement? And if so, anyone that uses that same color is subject to trademark infringement?