Contrasting finishes are fine as long as you stay in the same color spectrum and hopefully species. On a personal note, I like the darker trim colors with the body or main pallet lighter. Although, this can work perfectly fine with the opposite. ENJOY!

Thank you for your advice. I am going to attempt to post a pic to my comment. This flooring is the foyer, kitchen, ding room and family room. We would like to make the loot throughout a darker color, but hesitate at this point to change the treads and railing base. We want to make sure it's ok.

Please excuse the previous typos.

Personally, I don't like the combination of the very light newel post and the dark floors. However, you could always refinish the lighter wood later...it is easy to go darker on the stain. Going lighter is not going to work...I would consider darkening the stair trim to compliment the floor you choose (or paint)...

Thank you. Put in the darker wood! LOVE IT. Now the stair treads and newel post/railings..... Might paint instead of staining