EDF logo with blue lettering, Environmental Defense Fund text, and a leaf-like symbol
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Environmental Defense Fund

The Environmental Defense Fund is a United States-based nonprofit environmental advocacy organization founded in 1967. Its visual identity was updated globally in 2022, when the wordmark changed from the acronym EDF to the full organization name.

The Environmental Defense Fund (EDF) is a United States-based nonprofit environmental advocacy organization founded in 1967. Its visual identity has evolved through at least two documented logo systems, with the most recent update rolled out globally in 2022.

Design and History

In June 2009, the Environmental Defense Fund filed a trademark application for a logo described as “a semi-circle which appears at a diagonal angle with four wavy bars below the semi-circle.” The mark was registered later that year under registration number 3848674.[1] A contemporary description noted the tilted blue semi-circle with green, blue, teal, and green streaks running beneath it.[2]

In 2022, EDF launched a new logo globally. The updated wordmark replaced the previous “EDF” acronym with the organization’s full name, “Environmental Defense Fund,” a change intended to present the organization’s identity more clearly.[3] An EDF membership email from early 2023 described the revised logo as “simpler” with “bolder, brighter colors,” noting it was designed to make an impactful impression on mobile phones and computer screens.[4]

Meaning and Symbolism

EDF’s own communications state that the logo’s four wavy bars are symbolic. According to an EDF email announcing the revised mark, the design “continues to honor the four symbolic waves of air, trees, land and water,” which the organization identifies as core areas of its environmental work.[4]

EDF has stated that its name and logo are trademarks owned by the organization and may not be used without its prior written permission.[5]

Typography and Design

Documented details about the typography used in either the 2009 or 2022 EDF logo are not publicly available from official sources. The 2022 redesign is notable for shifting from the acronym “EDF” to the full organization name in the wordmark.[3] The specific design agency responsible for either logo version has not been publicly credited in available sources.

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

8 colors

  • #0B5092Blue, 40%

    RGB 11, 80, 146; CMYK 92, 45, 0, 43

    White text 8.1:1 (passes AA)

  • #0477B7Blue, 19%

    RGB 4, 119, 183; CMYK 98, 35, 0, 28

    White text 4.9:1 (passes AA)

  • #0AAFECBlue, 11%

    RGB 10, 175, 236; CMYK 96, 26, 0, 7

    Black text 8.4:1 (passes AA)

  • #CFDB4FYellow, 11%

    RGB 207, 219, 79; CMYK 5, 0, 64, 14

    Black text 13.9:1 (passes AA)

  • #16A678Green, 8.8%

    RGB 22, 166, 120; CMYK 87, 0, 28, 35

    Black text 6.8:1 (passes AA)

  • #7EC560Green, 4%

    RGB 126, 197, 96; CMYK 36, 0, 51, 23

    Black text 10.0:1 (passes AA)

  • #5F5F73Grey, 2.9%

    RGB 95, 95, 115; CMYK 17, 17, 0, 55

    White text 6.2:1 (passes AA)

  • #ACD156Green, 2.9%

    RGB 172, 209, 86; CMYK 18, 0, 59, 18

    Black text 12.0:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Nonprofit

95 measured Nonprofit logos

  • Main color blue39%
  • Combination mark75%
  • Four or more colors26%

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

Structure

Logo type
Combination markClassified by AI
Proportions
2.3 : 1Horizontal
Ink coverage
28%72% empty space inside the outline
Symmetry
Asymmetric18% left-right match
Outline
Free-formOverall silhouette
Complexity
Detailed8 shapes, about 2,578 points

Tints and shades

Click a step to copy

#0B5092

#0477B7

#0AAFEC

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
Swooping leaf-like shape
Style
Flat, minimal, corporate
Layout
Symbol right of the name
Techniques
Geometric construction, line art
Text in the logo
EDF ENVIRONMENTAL DEFENSE FUND Finding the ways that work

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