My boat built in 2003 is teak/teak veneer. The color is quite light, likely because of the finish on it. Catalina says they used "Oxford Hybrid Varnish" on my boat, which IIRC is a bit tinted, but not dark. It's also polyurethane based so it would have sealed the wood instead of leaving it to oxidize easier with something like just oil.
My C-30 was very dark - likely oil type finish. I did maintain it with oil. The 387 is definitely a film finish - cannot feel the wood grain.
The 387 has gotten lighter over the years: where the P.O. had artwork is darker than where the interior was exposed.
Pic of my 387 to see if it looks like your 36: (And yes, I put something over the "dark spot")