Please help me with my final decorating decision - have lost my decorating mojo after 5 years transforming our wreck 
I want a wooden floor for our hallway. Can't use floorboards as they are a mess. Happy with engineered or real wood I think. Walls are Little Greene French Grey. Staircase is their Dark Lead colour. Rest of wood work is white. I want something hardwearing and that won't show dirt too badly. It's a three bed Victorian terrace if that helps. Was wondering if I could go quite dark oak/walnut or does that show dirt too? Would it make hallway very dark? Any suggestions and specific suppliers hugely appreciated - thank you!