Modern Home Decorating

Reposting for any other ideas people might have that didn’t see my post before

My husband and I are closing on a home in 2 weeks, and I’m trying to figure out how to decorate the living area. It’s an odd, small area – Walk in the front door and its an oversize hallway more or less as the living room that L shapes to a small dining area that L shapes again to a dead end kitchen. So like a U shape with a wall between the kitchen and the living area.
It has light colored pergo flooring, and no high ceilings or skylights. And there is a pellet stove in the corner of the living area.
Since we wont have exra money, we have to keep our current furniture for the time being, which includes my husbands black leather couch and love seat.
The dining area and kitchen are going to have black wrought iron pieces (table/chairs and wall mounted pot rack).
With this information, do you have any tips on interior decoration? I need things to help make the room seem bigger, and tips on colors when our furniture is black and floor is light wood.

Any help would be appreciated! Thank you!
(Due to the last time I posted, and with the great answers I got – I’m thinking about a light blue or a light green – trying to convince husband of these though. And trying to figure out a good accent color with those colors)

I think that a vibrant orange or lemon yellow would make a good accent colour – 1 or 2 pillows and a glass bowl of the chosen citrus on the table.