Great idea, just needs wood tone to tone down a bit, pale maroon would look good too (a pastel red-ish purple color to pop w floor). ceiling lights cool idea, pinkish looks good w floor's yellow-green.
Design Inspiration for the Long Hall The French Eye. A rich brown wall adorned with a modern cubby shelving system. Unclear that the facing wall looks like but a white wall would provide nice contrast.
A third instance where your hallway leads to not an open space, nor a room but a solid wall, this is how your make said wall a focal point and a destination. The sky blue ceiling helps to reduce the otherwise starkness of this room.
and I think I have enough shells to fill the shelves. The coastal vibe of this pale blue bath caught my eye. I like the narrow shelves lining the rooms that display a collection of seashells, starfish and sand dollars