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 getting new blue and yellow uniforms, brown will be official alternate - Gaslamp Ball
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
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The Padres change uniforms, again, so let's look at their visual history
The Padres' Journey From Unique to Undistinguished (and Back Again?)
Order Restored to Uni-Verse as Padres Bring Back the Brown
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Want Padres fans to come back? Bring back the brown uniforms. - The San Diego Union-Tribune
The Padres change uniforms, again, so let's look at their visual history