Hi, I'm currently going through the same issue, Trying to find the right combo of paints to paint the hallway. I am looking to panel the part beneath the dado to prevent the ever so frustrating scuffing which occurs at sharp corners and am unsure on the colour combo. I was considering grey and white too but I'm scared that it may make the space feel too cold and dull especially as the only light will be through the door which won't be much. What colour combo's would you recommend to make the space feel luxurious and modern, yet not too clinical and cold?? I'd like the paint to be dulux preferably. what is the quality of Valspar paint like, I've seen it at DIY stores but don't know if it reaches standard of dulux? any reviews?? thanks

depends on the light you get in the space... but I have painted rooms with normal height ceilings the same colour as the wall and skirting/architrave and it looks good... just have to be careful with colour and natural light. try blackened or dimpse from farrow and ball... they are off-white/grey... couple of examples of rooms done same colour... but they have the advantage of high ceilings so can go a bit more bold

It would be really useful to post a few photos. A lot depends on the actual space, but also the exact colour of the carpet and tiles. I don't think I would go for pure white with quarry tiles, it could look a bit harsh. Earthy stoney colours could work well with quarry tiles.

Try these people. Loads of herringbone and some quite bold ones too. They do pieces for the landing and turns. I had a runner from them. Prices are reasonable but you have to do the measuring yourself and send them a drawing if you want turns etc. Mine was quite a dark narrow staircase. Don’t think it matters really and a light carpet doesn’t brighten it up. I think it’s the walls and contrast that matters. https://www.stairrunnersdirect.com/Stair-Runners/Patterned