Sumitomo Corporation logo with a four-diamond symbol to the left of the black wordmark.
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Sumitomo Corporation

Sumitomo Corporation is a Japanese general trading company headquartered in Tokyo and a core member of the Sumitomo Group. Its identity uses the group's igeta mark, a diamond-shaped grid, with a unique trademark devised in 1913.

Country: Japan

Industry: Retail

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Sumitomo Corporation is a Japanese general trading company (sogo shosha) headquartered in Tokyo, and a core member of the Sumitomo Group. Its visual identity is built around the group’s centuries-old igeta mark, a diamond-shaped grid pattern that serves as the shared emblem for Sumitomo Group companies.

Design and History

The igeta is a diamond-shaped grid pattern representing the wooden frame of a well. It was originally used by Riemon Soga as the trademark of Izumiya, the copper-refining and coppersmithing business he established in Kyoto in 1590, to express “izumi” meaning a “spring” in Japanese with the symbol mark of a well. To achieve differentiation from other merchants’ igeta motifs, Sumitomo devised an igeta trademark with unique dimensional proportions in 1913, which is used to this day.[1]

Sumitomo Corporation itself was founded in 1919 as The Osaka North Harbour Company Limited. The company celebrated its 100th anniversary in December 2019, and in connection with that milestone created a new corporate message, “Enriching lives and the world.”[2] The company’s official logo file is hosted on its corporate website under the corporate message section, indicating the wordmark is used in conjunction with the group’s messaging.[3]

Sumitomo Corporation’s brand concept video describes a “renewed brand image” that brings to life a commitment to connecting people and bridging society and the world through symbolic ribbons and scenes of collaboration, conveying the aspirations behind the corporate message “Enriching lives and the world.”[4]

Meaning and Symbolism

The igeta mark’s meaning is directly tied to the Sumitomo Group’s origins. The diamond-shaped grid represents the wooden frame of a well, a symbol chosen to express the “spring” in the name of the original Izumiya business.[1] The mark functions as a shared heritage emblem across the Sumitomo Group, linking Sumitomo Corporation to the broader family of Sumitomo companies that trace their roots to the same 1590 Kyoto business.

Typography and Design

Sumitomo Corporation’s current logo is a typographic wordmark featuring the company name. The official logo is distributed as an SVG file from the company’s website, indicating a vector-based, scalable design intended for digital and print applications.[3] No official documentation of the wordmark’s typeface, exact color specifications, or designer attribution was found in the available research.

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 30/09/2026.

Colors

Black with one accent color.

  • #1A1715Black, 83%

    RGB 26, 23, 21; CMYK 0, 12, 19, 90

    White text 17.8:1 (passes AA)

  • #9DDDCETeal, 17%

    RGB 157, 221, 206; CMYK 29, 0, 7, 13

    Black text 13.7:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Retail

391 measured Retail logos

Only 24% of Retail logos in the archive use exactly 2 colors.

  • Main color black29%
  • Combination mark37%
  • 2 colors24%

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

Structure

Logo type
Combination markClassified by AI
Proportions
11.8 : 1Horizontal
Ink coverage
30%70% empty space inside the outline
Symmetry
Asymmetric32% left-right match
Outline
Free-formOverall silhouette
Complexity
Detailed3 shapes, about 536 points

Tints and shades

Click a step to copy

#9DDDCE

Typography

Lettering style: Humanist sans.

This is a style class, not the exact font. The font has not been documented.

Free fonts in this style: Source Sans 3, Fira Sans, Open Sans

Visual description

Classified by AI

Symbol shows
Four diamonds forming a diamond
Style
Geometric, flat, minimal
Layout
Symbol left of the name
Techniques
Geometric construction, negative space
Text in the logo
Sumitomo Corporation

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Same main color, same industry

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