Blue replaced brown on Padres uniforms in 1991, by FriarWire
San Diego Padres - Wikipedia
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
San Diego Padres Brown Uniform Redesign - Concepts - Chris Creamer's Sports Logos Community - CCSLC - SportsLogos.Net Forums
Orioles beat Rays 5-1 for first series sweep since 2018 - The San Diego Union-Tribune
The Padres change uniforms, again, so let's look at their visual history
Padres unveil new brown uniforms
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Just Put the Swinging Friar Front and Center Already
Brown has been part of the Padres' history since expansion, by FriarWire
Valley News - Commentary: Padres Try to Turn Blue Eyes Brown
Padres uniforms: San Diego returns to brown jerseys in 2020 - Sports Illustrated