Blue replaced brown on Padres uniforms in 1991, by FriarWire

Padres Unveil New Uniforms With Brown-and-Gold Color Scheme - Sports Illustrated

Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune

Padres uniform history: The 1970s - ESPN - SweetSpot- ESPN

Padres getting new blue and yellow uniforms, brown will be official alternate - Gaslamp Ball

Padres uniform history: The 1970s - ESPN - SweetSpot- ESPN

The Padres change uniforms, again, so let's look at their visual history

Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune

Brown solidly returns to Padres uniforms Saturday… but has been in the blend for years, by FriarWire