My general rule of thumb on "through" items like doors is consistency. The exception might be an entry door. So I would typically advise a client to either paint all the doors the same color OR go natural wood in a matching tone.

The color depends on the end result you're going for. With your warm neutral on the walls in the lower hallway white is a safe option of course but you could even do a stronger color.

When you're considering painting a single element, start by creating a paint palette for you entire home that consists of a "through" neutral color - like this hall wall color. Add in your trim color. The select an accent color the works well with your flooring and adds a little flair. You can even incorporate a wood tone you love (like the wood tone in your beams, for example!). That way if you opt for wood doors downstairs, you know the whole thing will blend.

There's been a trend to go with strong colors - black doors are popular! - but you could even do a deep neutral to keep that hallway from feeling too closed in.

Used this pre-set color palette as the cohesive factor throughout the public areas and in those through spaces and your whole design will come together more easily.

Pamela.