Brown has been part of the Padres' history since expansion, by FriarWire
Blue replaced brown on Padres uniforms in 1991, by FriarWire
Best and Worst Uniform Sets for Padres
2023 MLB Uniform Rankings
Padres uniforms: Visual history of brown, yellow, blue, orange, sand - The San Diego Union-Tribune
San Diego Padres unveil new home-and-road uniforms for 2017 – SportsLogos.Net News
San Diego Padres unveil new uniforms with brown-and-gold color scheme - ESPN
Padres getting new blue and yellow uniforms, brown will be official alternate - Gaslamp Ball
The Only Consistency to Padres' Uniforms Is Inconsistency