Hard hats come in a variety of bright colors, and those colors aren't just an aesthetic choice. The color of a hard hat is meant to indicate the job and specialization of whoever is wearing it.

See what tough work the royals are tackling The life of a British royal isn't all luxury! Create your free account or log in to save this article Sept. 23, 2015, 6:59 AM PDT / Source: TODAY By Ree ...