A cuttlefish is a marine cephalopod (related to the octopus) with an astounding natural ability: it can instantly change the texture and colors of its skin to mimic its surroundings. Cuttlefish the typeface family has a similar chameleon-like potential, altering its appearance to fit in with a wide range of sans-serif settings.
This radical adaptability is best seen in the variable-font version of Cuttlefish, as seen here:
More important than Cuttlefish’s ability to mimic existing typefaces, though, is its ability to become the exact sans-serif face you envision for your needs!