Why are the Diamondbacks wearing purple hats?

In honor of Hall of Fame Weekend, teams around Major League Baseball are wearing throwback hats to commemorate the occasion, including the Arizona Diamondbacks.

The D-backs are wearing their vintage purple hats with the teal logo this weekend at the Pittsburgh Pirates with a Hall of Fame patch on the side.

They are not donning throwback jerseys, however, as they are otherwise wearing their typical road attire for a blend of eras with colors that don’t totally match. Players did their best with purple accessories.

The Pittsburgh Pirates have opted for, what appears to be a (one helluva beautiful) Dave Parker inspired combo (black pants too!), instead of their HOF Weekend caps.

The Arizona Diamondbacks are mixing eras, like many will this weekend. Purple caps, grey and Sedona red jerseys. pic.twitter.com/AavPqjXEJB

— SportsLogos.net (@sportslogosnet) July 25, 2025

The Pirates’ hats looked a bit more natural with their black and gold uniforms, as Pittsburgh wore their 1970s pillbox hats with the Stargell Stars, which Hall of Famer Willie Stargell awarded teammates back in the day.

The Pirates also wore special patches on their uniforms to honor the late Dave Parker, who will be enshrined in Cooperstown on Sunday. He died earlier this year after a battle with Parkinson’s disease. The patch says “Cobra,” Parker’s nickname.

🐍💛 pic.twitter.com/lJp5wRX9sc

— Pittsburgh Pirates (@Pirates) July 25, 2025

The Miami Marlins are wearing their old Florida Marlins teals, the Los Angeles Dodgers are wearing their Brooklyn hats and many others are throwing it back decades with their caps.

MLB teams are limited to four jerseys plus a City Connect. The D-backs have a purple City Connect uniform that debuted this year, but they wear those jerseys at home.

Five players are being inducted into the Hall of Fame this weekend: outfielder Ichiro Suzuki, pitcher CC Sabathia, pitcher Billy Wagner, first baseman Dick Allen and Parker, an outfielder.

The ceremony is Sunday at 10:30 a.m. MST.

Related

Diamondbacks' Mike Hazen keeping options 'on the table' after trading Josh NaylorDiamondbacks place OF Alek Thomas on bereavement listWhy are the Diamondbacks wearing hats that do not match their jerseys this weekend?Devin Booker is changing his Suns jersey number from No. 1Reno Aces go infinity and beyond with special Toy Story jerseysMcDonald’s brings Ronald to Sedona wearing Devin Booker’s Book 2 shoes