I bought this at the farmer's market but forgot the name! Any guesses what it is?

Thanks!

Tradescantia spathacea variegata, The dwarf form I believes

I agree, a variety of Oyster Plant (Tradescantia spathacea)

Thanks to both of you for the quick and informative identification!

I particularly appreciate the further detail of it also being known as an "oyster plant" because that's a name I can remember! I would have immediately forgot "Tradescantia spathacea variegata," and I'm sure I'm going to get lots of compliments and inquiries from family and friends asking about this beauty.

Thanks again!

Pleasure if that helps.
To amuse you even more, that plant is also known as boatlily or Moses-in-the-cradle for the shape of their blossom

And to confuse you the name of Oyster plant is also used for several other plants, here are few from wikipedia