Blue replaced brown on Padres uniforms in 1991, by FriarWire
Padres brown uniform mockups by John Brubaker are awesome - Gaslamp Ball
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Modern mock-ups of Padres uniforms in retro colors - Gaslamp Ball
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
Letters From Spring: With Fernando Tatis Jr., the Padres are dreaming the biggest dreams - The Athletic
TFHS Closer Look: Prototype Padres - Gaslamp Ball
Down A Padres Uni Rabbit Hole - Gaslamp Ball
Brown solidly returns to Padres uniforms Saturday… but has been in the blend for years, by FriarWire
New brown uniforms are a home run for Padres
Column: Brown is back as Padres launch season series against Dodgers - The San Diego Union-Tribune