I’m painting my living room a color and dining room another color. My problem is the living main wall leads straight upstairs. Should I paint it the color and take the color all the way up to hallway? The rest of hallway is white. Or should I paint that wall

After the last paint job on our block building, the paint is failing and the mortar and block is too. One contractor suggested moisture from inside of heated office areas was causing outside to fail. Inside is sheetrock and has never been an issue since 1978