Houseplant Fern Turns Colors: What is it?

I have a fern that turns colors every few months. Could you tell me what it is.

Hi Sylvia,

Pink, orange, green Brilliance autumn green fern

Brilliance Autumn Fern
Dryopteris erythrosora ‘Brilliance’

Your fern is called a Brilliance Autumn Fern. It starts out pink, then coppery, and then a deep green.