Brown represents earth and is seen commonly in nature. It's often associated with humility, an agricultural lifestyle and simplicity. Brown is the least favorite color named by the public, and men are more likely than women to cite it as a favorite color.
U.S. shipping company United Parcel Service uses brown trucks and uniforms, and the company has filed two trademarks on the color to limit its use by other businesses. UPS refers to itself as "Brown" in advertising. UPS adopted brown for its vehicles and uniforms because it doesn't show dirt as obviously as most other colors. The Cleveland Browns, an NFL team, also use brown as their official color.