My DH has problems visualising colours so often doesn't like the ideas I have before they go up. I have always given him full veto - on the proviso that if he doesn't like it we can change it back. He has never exercised his right.
I am v lucky in that DH is a decorator so I pick the colour/wallpaper, he puts it on, I tidy up and wash out the rollers. We do have similar taste luckily but one thing we agree on is that all ceilings and woodwork should be white
You need to make him think its his idea. Not in a patronising way but by dropping subtle hints and show him lots of photos of things which look like your idea (magazine and house to home and houzz.com).
My DH thinks he is practically an interior designer. The very first advice MIL gave me regarding DH was: "I love my son but he has terrible taste in interiors and furniture. You make sure you choose."
So I have taken this on board and spend a long time very subtly planting seeds. Works well. I get furniture and decor that I believe tastful and DH spends hours telling our friends it was his idea. Everyone's happy.
As you have now both fallen out over the hallway and colours sadly you can't do this. You will have to sit down and both agree on something. Get your DH onto houzz.com and see if you can find something you both like. Results may surprise you. And it will be fun doing it together.