The team colours are red, black and white, with added trim of gold. The team's away jersey is mostly white with red and black trim, while the home jersey is red, with white and black trim. The club logo is officially the head of a Roman general, a member of the Senate of the Roman Republic, projecting from a gold circle. The original, unveiled on May 23, 1991, described the general as a "centurion figure, strong and prominent" according to its designer, Tony Milchard.

The current jersey design was unveiled on August 22, 2007, in conjunction with the league-wide adoption of the Rbk EDGE jerseys by Reebok for the 2007–08 season. The jersey incorporates the original Senators' 'O' logo as a shoulder patch. At the same time, the team updated its logos, and switched their usage. The primary logo, which according to team owner Eugene Melnyk, "represents strength and determination" is an update of the old secondary logo. The old primary logo has become the team's secondary logo and only appears on Senators' merchandise.