Interdéveloppement logo with six hexagon outlines and the letters ID in the center.
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Interdéveloppement

Interdéveloppement is a French management brand whose symbol was designed at Lonsdale Design in 1968. The mark is a hexagon outline logo referencing the hexagonal outline of France.

Interdéveloppement is a French management brand whose symbol was originally designed at Lonsdale Design in 1968. The mark is categorized as a hexagon logo with an outline shape, referencing the hexagonal outline of France. The logo database lists it among designs created in 1968 and describes it as an outline-style hexagon mark. [1]

Design and History

Lonsdale Design, the agency credited with the Interdéveloppement symbol, was founded in 1961 by British designer Richard Lonsdale, who partnered with the Dupuy family of the advertising agency Dupuy-Compton. [2] The agency has a long history of French design work, including the first Évian PET bottle in 1969, the redesign of the La Vache qui rit logo, and identities for Baccarat, Nicolas, and Croisières Paquet. [2]

The Interdéveloppement mark is documented as a hexagon-shaped outline logo, a form commonly associated with the hexagonal shape of metropolitan France. The logo database identifies it as a “France hexagon shape outline” design. [1]

Meaning and Symbolism

The hexagon outline in the Interdéveloppement logo evokes the geographic shape of France, a visual shorthand frequently used in French corporate identity. The database categorizes the mark specifically as a “France hexagon shape outline” design, indicating the hexagonal form is the central visual element. [1]

Beyond this documented geometric reference, no official source provides additional symbolism, color specifications, or typography details for the Interdéveloppement mark. The available evidence is limited to the design attribution, the 1968 date, and the hexagon outline classification.

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

Pure black, single color.

  • #000000Black, 100%

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

    White text 21.0:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Consulting

70 measured Consulting logos

  • Main color black41%
  • Combination mark51%
  • Single color47%

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

Structure

Logo type
Combination markClassified by AI
Proportions
1 : 1.1Roughly square
Ink coverage
11%89% empty space inside the outline
Symmetry
Asymmetric64% left-right match
Outline
Free-formOverall silhouette
Complexity
Detailed8 shapes, about 720 points

Typography

Lettering style: Geometric sans, uppercase.

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

Free fonts in this style: Montserrat, Outfit, Urbanist

Visual description

Classified by AI

Symbol shows
Six hexagons surrounding ID
Style
Geometric, minimal
Layout
Enclosed emblem
Techniques
Geometric construction, badge
Text in the logo
ID

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