Breed of hipster who dresses exclusively in earth tones - tans, grays, dark greens, etc. - and sometimes other muted colors. To the untrained eye (i.e. someone only accustomed to hipsters who wear bright, multicolored and/or metallic clothes), an earth tone hipster may fly under the radar.
Earth tone hipsters often have intellectual inclinations and their 'quieter' clothing (compared to that of their loudly-colored cousins) reflects their 'introspective' tendencies.
Nick: Hey, you said your school is full of hipsters but I don't see any metallic silver leggings.
Sophie: Shh, they're all over the place. You just can't see them because they're all intellectual-type earth tone hipsters and they blend in with their surroundings.