GSA Logo Usage Guidelines

The Geological Society of America (GSA) logo is an important tool that we use to communicate who we are, what we do, and what distinguishes us from other geoscience organizations.

The logo represents the identity of our Society and the progressive, forward-looking image we wish to portray. It may be used on all Society promotional materials provided such usage adheres to these guidelines.

Learn more about what GSA’s logo means

By downloading GSA graphics, you indicate your agreement to the following terms of use:

  1. The GSA logo is composed of two parts, the mark and the name element. Both parts of the logo MUST be used together and may not be rearranged for any reason.
  2. The logo must be surrounded by an area of isolation equal to the distance from the bottom of the mark to the tip of the arc. This area is built into the graphic as white space. DO NOT crop the white space from the image file.
  3. The logo should never have a border.
  4. The logo may be used in
    • Color
    • Black
    • White
  5. Colors may not be altered in any way. See table for precise color values.
Color Pantone® RGB Hex
GSA Purple 268 77 / 25 / 121 #4D1979
GSA Green 3305 0 / 88 / 74 #00584A

GSA Logo Graphics Standard Manual

View the GSA Graphics Standard Manual, which provides more specific logo guidelines.

Download Logos

For Web


For Print


Questions regarding use of the GSA logo should be sent to