Taupe front seat bottom covers?

Is there a source for an OEM taupe color front (driver) seat bottom cover? I looked at the Toyota online parts catalogue, and the only colors are stone, charcoal or fawn. I don't want to experiment with fawn, although it sounds close to taupe. Taupe is the official factory color name, is it not? Thanks for any input.

 

Did some more searching. Is it true that for interior colors on 4th generation 4Runners:

oak = taupe = fawn

I recently ordered floor mats, that were called "oak" and they matched my taupe interior. So the question is really about taupe and fawn.

Thanks for clarification.