San Diego Seals logo showing a seal face with a crown inside a shield
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San Diego Seals

The San Diego Seals are a professional box lacrosse team in the National Lacrosse League that began play in the 2018-19 season. The franchise announced its name, logo and colors on October 24, 2017, with the logo commissioned from Adrenalin, Inc.

The San Diego Seals are a professional box lacrosse team in the National Lacrosse League (NLL) that began play in the 2018-19 season. The franchise announced its name, logo and colors on October 24, 2017, at a press conference on the rooftop of the La Jolla Cove Hotel & Suites in San Diego.[1]

Design and History

The team’s primary logo depicts a seal face that team president Steve Govett described as “tenacious, yet welcoming.” The seal wears a crown with three spikes, a representation of the trident of Poseidon, the Greek god of the sea. The shield background is reminiscent of the head of a lacrosse stick.[2]

The logo was commissioned from Adrenalin, Inc., a design firm that has created logos for several professional and collegiate teams.[3] Adrenalin Sports Marketing, a division of Real FiG Advertising + Marketing, created a family of logo designs for the team.[4]

The team name was chosen by owner Joe Tsai, who was granted the San Diego NLL expansion franchise in August 2017.[1][3] The name acknowledges the marine mammals along San Diego’s coastline and pays tribute to the Navy SEALs who train in nearby Coronado.[5]

Meaning and Symbolism

The logo’s design elements carry documented meaning tied to both San Diego and lacrosse history. The shield background evokes the head of a lacrosse stick, connecting the mark to the sport itself.[2] The trident crown references Poseidon, the Greek god of the sea, fitting for a coastal city.[2]

The color palette is purple, black, gold and gray.[3] Gold was selected to bring to mind the sunshine of San Diego, while purple is the primary color of the Iroquois, a nod to lacrosse’s Native American roots.[3] The Seals were the lone NLL team whose colors included gold and purple at the time of the unveiling.[2]

The team used the slogan “Surfacing Soon” from the brand reveal until it began play the following season.[1]

Logo Index is an independent educational archive covering logos, visual identities and graphic design history. All trademarks and brand assets remain the property of their respective owners.

Logo data

Measured from the original SVG file on 01/10/2026.

Colors

5 colors

  • #000000Black, 71%

    RGB 0, 0, 0; CMYK 0, 0, 0, 100

    White text 21.0:1 (passes AA)

  • #FFB819Yellow, 12%

    RGB 255, 184, 25; CMYK 0, 28, 90, 0

    Black text 12.1:1 (passes AA)

  • #B3B2B1Grey, 11%

    RGB 179, 178, 177; CMYK 0, 1, 1, 30

    Black text 9.9:1 (passes AA)

  • #FFFFFFWhite, 3.5%

    RGB 255, 255, 255; CMYK 0, 0, 0, 0

    Black text 21.0:1 (passes AA)

  • #62269EPurple, 2.7%

    RGB 98, 38, 158; CMYK 38, 76, 0, 38

    White text 9.2:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Sports

2,708 measured Sports logos

Only 21% of Sports logos in the archive use black as the main color.

  • Main color black21%
  • Emblem51%
  • Four or more colors85%
  • Most common main color here: blue26%

From measured files, not tags. Updated 28/10/2026.

Structure

Logo type
EmblemClassified by AI
Proportions
1 : 1.4Vertical
Ink coverage
61%39% empty space inside the outline
Symmetry
Mirror-symmetric100% left-right match
Outline
Free-formOverall silhouette
Complexity
Detailed12 shapes, about 658 points

Tints and shades

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#FFB819

#B3B2B1

Visual description

Classified by AI

Symbol shows
Seal face wearing crown
Style
Flat, geometric, minimal
Layout
Enclosed emblem
Techniques
Badge, geometric construction, mascot
Text in the logo
TM

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