I think of your space and then think of mine which has to windows floor to ceiling on two walls and 2 skylights one wall is all built in cabinets that hold my fabrics and supplies the other one my freezer, book cases and family photos. No place for a design wall. I am trying to think something through for a design wall though.
Now back to color. I am fond of green when there is good lighting. There are many shades of semi gloss paints that can make the most of your lighting and no alter any project you might be working on. I would try and stay as close to or lighter than a bluegrass coloring. Light greens are nice too.