Blue replaced brown on Padres uniforms in 1991, by FriarWire
The San Diego Padres are finally bringing back brown uniforms
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
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The Padres change uniforms, again, so let's look at their visual history
Order Restored to Uni-Verse as Padres Bring Back the Brown
Padres uniform history: The 1990s - ESPN - SweetSpot- ESPN
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Order Restored to Uni-Verse as Padres Bring Back the Brown
TFHS Special: Redesigning the Padres - Gaslamp Ball
Padres getting new blue and yellow uniforms, brown will be official alternate - Gaslamp Ball
TFHS Special: Redesigning the Padres - Gaslamp Ball