Pittsburgh Steelers Logo

The Steelers logo was introduced in 1962 and is based on the "Steelmark", originally designed by Pittsburgh's U.S. Steel and now owned by the American Iron and Steel Institute (AISI). In fact, it was Cleveland-based Republic Steel that suggested the Steelers adopt the industry logo. It consists of the word "Steelers" surrounded by three astroids (hypocycloids of four cusps). The original meanings behind the astroids were, "Steel lightens your work, brightens your leisure, and widens your world." Later, the colors came to represent the ingredients used in the steel-making process: yellow for coal, red for iron ore, and blue for scrap steel. While the formal Steelmark logo contains only the word "Steel", the team was given permission to add "ers" in 1963 after a petition to AISI.

The Steelers are the only NFL team that puts its logo on only one side of the helmet (the right side). Longtime field and equipment manager Jack Hart was instructed to do this by Art Rooney as a test to see how the logo appeared on the gold helmets; however, its popularity led the team to leave it that way permanently.

A year after introducing the logo, they switched to black helmets to make it stand out more.

The Steelers, along with the New York Giants, are one of only two teams in the National Football League to have the players' uniform numbers on both the front and back of the helmets.

The current uniform designs were introduced in 1968. The design consists of gold pants and either black jerseys or white jerseys, except for the 1970 and 1971 seasons when the Steelers wore white pants with their white jerseys. In 1997, the team switched to rounded numbers on the jersey to match the number font (Futura Condensed) on the helmets, and a Steelers logo was added to the left side of the jersey.

The current third uniform, consisting of a black jersey with gold lettering, white pants with black and gold stripes, and a gold helmet were first used during the Steelers' 75th anniversary season in 2007. They were meant to evoke the memory of the 1963–1964 era uniforms. The uniforms were so popular among fans that the Steeler organization decided to keep them and use them as a third option during home games only.

In 2008–2009, the Steelers became the first team in NFL history to defeat an opponent three times in a single season using three different uniforms.[citation needed] They defeated the Baltimore Ravens in Pittsburgh in Week 4 in their third jerseys, again Week 15 in Baltimore in their road whites, and a final time in the AFC Championship in Pittsburgh in their home black jerseys.

In 1978, the team owners were approached by then-Iowa Hawkeyes Head Coach Hayden Fry about designing his fading college team's uniforms in the image of the Steelers. Three days later, the owners sent Fry the reproduction jerseys (home and away versions) of then quarterback Terry Bradshaw. Today, the Hawkeyes still retain the 1978 Steelers uniforms as their home, and away colors.