Why are the Phillies wearing blue uniforms in the NLDS?

MLB: NLDS-Atlanta Braves at Philadelphia Phillies, Fieldlevel

Phillies to wear powder blue uniforms at times this season

975TheFanatic on X: The Phillies will be wearing their powder blue uniforms in game four of the NLDS tomorrow night. Are these the best uniforms in the city? 📸 Tim Nwachukwu/Getty Images

Diamondbacks vs. Dodgers prediction: Pick, odds for Game 2 of NLDS in 2023 MLB playoffs - DraftKings Network

LOOK: The Phillies' 1980s powder-blue throwbacks are beautiful and deserving of your love

Powder blue uniforms return for the Minnesota Twins - Twinkie Town

NLDS: Nick Castellanos hits two homers, powers Phillies past Braves and into NLCS - Los Angeles Times

Rangers, Astros, Phillies, Diamondbacks open Division Series with wins, Pro Sports

The long and storied history of MLB teams taking the field in blue uniforms - ESPN

Philadelphia Phillies Troll Orlando Arcia After Crushing Atlanta Braves in NLDS - Sports Illustrated Inside The Phillies