Blue replaced brown on Padres uniforms in 1991, by FriarWire
The Padres change uniforms, again, so let's look at their visual history
Padres Unveil New Uniforms With Brown-and-Gold Color Scheme - Sports Illustrated
The Padres' Journey From Unique to Undistinguished (and Back Again?)
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Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Brown has been part of the Padres' history since expansion, by FriarWire
Blue replaced brown on Padres uniforms in 1991, by FriarWire
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
The Padres' Journey From Unique to Undistinguished (and Back Again?)
Padres Considering Big Changes, Maybe Brown for 2020 – SportsLogos.Net News