Blue replaced brown on Padres uniforms in 1991, by FriarWire
Padres uniforms: Visual history of brown, yellow, blue, orange
Padres Uniform Survey: The Results - Gaslamp Ball
Padres uniforms: Visual history of brown, yellow, blue, orange
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Glenn Hoffman, Clay Kirby Next Additions to Top 100 Padres
Order Restored to Uni-Verse as Padres Bring Back the Brown
Padres uniforms: Visual history of brown, yellow, blue, orange
Padres to bring back brown uniforms in 2020 - Blowout Cards Forums
Order Restored to Uni-Verse as Padres Bring Back the Brown
Goodbye to the blue: Ending of Padres' era
The Padres change uniforms, again, so let's look at their visual