floor and stairs

Thanks ahead of time for all your great advice.
I have a dark brown satin oak hardwood flooring already installed. We are now replacing our staircase with maple tread and newel posts along with poplar balusters. The idea is to stain the treads handrail and newel posts and paint white the trim and balusters.

The question is, what sheen should we do the treads stain and paint to look well with our floor.

We do want the treads to stain a darker brown black than our floor and the balusters white as that seems to give an elegant look.

We have a choice between satin, semi,or high gloss in each.

Thanks so much for your help

 

Normally you use the same sheen on the treads as you do on the flooring. Maple doesn't take stain well, are you sure you can get it dark enough to match the oak flooring? Why are you using maple treads instead of oak?