TOHO GAS logo with a blue T-shaped symbol containing a white leaf.
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Has celebrated the 100th anniversary of our founding in June this year

The Toho Gas logo features a distinctive symbol rendered in Blue and black, establishing a recognizable presence for the Japan energy company.

Country: Japan

Industry: Energy

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Website: Website

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Toho Gas, a Japanese city gas supplier serving the Tokai region around Nagoya, introduced a new corporate brand identity in March 2025 as part of a group-wide rebranding effort. The project, led by the branding agency Sevendex, was undertaken to clarify the company’s direction after its 100th anniversary and amid major shifts in the energy market, including Japan’s 2050 carbon neutrality goal.[1]

Design and History

Toho Gas celebrated the centennial of its founding in June 2022.[2] The company had announced its Group Vision in March 2022, ahead of the anniversary, and the rebranding was positioned as a way to embody that vision and refresh the corporate image both internally and externally.[3]

The rebranding was publicly unveiled on March 27, 2025, after roughly a year and a half of work by Sevendex, which handled brand strategy, brand identity definition, internal engagement initiatives, and creative production.[1] The project included the definition of a new brand statement, called “watashitachi no omoi” (our thoughts), and a new communication phrase, “Mirai no, mannaka e” (toward the center of the future).[4]

Earlier in the company’s history, Toho Gas had renewed its corporate mark around 1989, during a period when it was advancing the conversion of its city gas feedstock to natural gas (LNG).[5] That earlier mark was also applied to the company’s manhole covers at the time.[5]

Meaning and Symbolism

The new communication phrase “Mirai no, mannaka e” expresses the company’s intention to move toward the center of the future together with the region, society, and its employees.[1] The brand statement emphasizes creating “unwavering security” and “prosperity that continues into the future,” with the goal of building communities where people want to live.[4]

Sevendex described the rebranding process as one of uncovering and re-editing values that already existed within the company, rather than adding something entirely new.[1] The brand identity was developed through workshops with younger and mid-career employees, with more than 1,000 candidate statements considered before final agreement was reached.[6]

Typography and Design

Sevendex also designed the brand book for the rebranding project, which was distributed to all group companies. The book used a manga-style narrative format to connect the group’s past, present, and future, with all content planning, writing, book design, and illustration handled by Sevendex.[3]

Brand color data for Toho Gas, as cataloged by the brand asset platform Brandfetch, lists a cerulean blue (hex #009CCF) and black among the company’s colors.[7] However, no official source has been found that documents the specific symbolism or design intent behind the current logo’s colors or symbol.

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Logo data

Measured from the original SVG file on 30/09/2026.

Colors

Black with one accent color.

  • #211714Black, 57%

    RGB 33, 23, 20; CMYK 0, 30, 39, 87

    White text 17.5:1 (passes AA)

  • #009ACCTeal, 43%

    RGB 0, 154, 204; CMYK 100, 25, 0, 20

    Black text 6.5:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Energy

217 measured Energy logos

Only 16% of Energy logos in the archive use black as the main color.

  • Main color black16%
  • Combination mark69%
  • 2 colors33%
  • Most common main color here: blue38%

From measured files, not tags. Updated 29/10/2026.

Structure

Logo type
Combination markClassified by AI
Proportions
4.0 : 1Horizontal
Ink coverage
34%66% empty space inside the outline
Symmetry
Asymmetric22% left-right match
Outline
Free-formOverall silhouette
Complexity
Moderate9 shapes, about 244 points

Tints and shades

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#009ACC

Typography

Lettering style: Grotesque sans, uppercase.

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

Free fonts in this style: Work Sans, Archivo, Public Sans

Visual description

Classified by AI

Symbol shows
Stylized letter T with leaf
Style
Flat, geometric, minimal
Layout
Symbol left of the name
Techniques
Letter used as symbol, negative space, geometric construction
Text in the logo
TOHO GAS

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