The Colts' helmets in 1953 were white with a blue stripe. In 1954–55 they were blue with a white stripe and a pair of horseshoes at the rear of the helmet. For 1956 the colors were reversed. white helmet, blue stripe and horseshoes at the rear. In 1957 the horseshoes moved to their current location, one per side The blue jerseys have white shoulder stripes while the white jerseys have blue stripes. The team also wears white pants with blue stripes down the sides.
From 1982 through 1986, the Colts wore gray pants with their blue jerseys. The gray pants featured a horseshoe on the top of the sides with the player's number inside the horseshoe. The Colts continued to wear white pants with their white jerseys throughout this period, and in 1987, the gray pants were retired.
The Colts wore blue pants with their white jerseys for the first three games of the 1995 season, but then returned to white pants with both the blue and white jerseys. The team made some minor uniform adjustments before the start of the 2004 season, including reverting from blue to the traditional gray face masks, darkening their blue colors from a royal blue to speed blue, as well as adding two white stripes to the socks. In 2006, the stripes were removed from the socks.
In 2002, the Colts made a minor striping pattern change on their jerseys, having the stripes only on top of the shoulders then stop completely. Previously, the stripes used to go around to underneath the jersey sleeves. This was done because the Colts, like many other football teams, were beginning to manufacture the jerseys to be tighter to reduce holding calls and reduce the size of the sleeves. Although the white jerseys of the Minnesota Vikings at the time also had a similar striping pattern and continued as such (as well as the throwbacks the New England Patriots wore in the Thanksgiving game against the Detroit Lions in 2002, though the Patriots later wore the same throwbacks in 2009 with truncated stripes and in 2010 became their official alternate uniform), the Colts and most college teams with this striping pattern did not make this adjustment.