Most woodwork down below will change colors over the years and be based on what POs and current owners have used to treat it. Even with a picture here, no one can guess.
Some varnish down below (I don't like it, but many do), some just use teak oil (my choice for the past 18 years on a 30 year old boat), and some have other concoctions.
Mahogany sometimes matches teak, sometimes it's too dark. I'm pretty sure they make a teak colored stain, too.
The most appropriate course of action would be to check out stains and finishes that work for YOUR eyes.
Good luck.