Mariners Blue

Mariners Blue is the official primary color of the Seattle Mariners, used on home uniforms, logos, and ballpark branding. The 2026 season marks the 50th in franchise history and the 27th full season at T-Mobile Park, where the team wears a uniform patch commemorating the milestone. The color is a constant presence as the Mariners look to improve on their 2025 AL Championship Series appearance.

Lore & Background

The 2026 season saw the Mariners retire Randy Johnson's uniform number 51 on May 2, following the retirement of Ichiro Suzuki's number in 2025. A statue for Suzuki was unveiled in April, with a statue honoring the 2001 Mariners—who won 116 games—planned for September. The team also announced Sunday home games would feature Seattle Steelheads-inspired uniforms, replacing cream alternates. Longtime broadcaster Rick Rizzs announced his retirement after the season, and the franchise moved television production to MLB Local Media after shuttering Root Sports Northwest.

Reader's Guide

The Mariners' offensive struggles continued on their first road trip. After beating the Los Angeles Angels on April 3, they lost five straight games. Angels right fielder Jo Adell robbed three potential Mariners home runs in a 1–0 win on April 4. The Texas Rangers then swept Seattle. Outfielder Víctor Robles went on the injured list, replaced by Connor Joe, who made a costly error and was hitless in his debut. The losing streak ended with a four-game sweep of the Houston Astros, scoring six or more runs in each game. Josh Naylor hit his first two home runs of the season on April 13 to seal the sweep.

Did You Know?

Longtime broadcaster Rick Rizzs announced he would retire after the 2026 season.
The Mariners will wear Seattle Steelheads-inspired uniforms on Sunday home games in 2026, replacing cream alternates.
Top prospect Colt Emerson signed an eight-year, $95 million contract extension in early April 2026 but remained in the minors.