Boy, I can relate to all of these posts. I have RP in my open floor plan. On the walls that have natural light, it looks OK (not my favorite) but the adjoining family room with the screened porch next to it blocking the light, the walls look like green/yellow mud and I am stressing as to what to do. My trim & cabinets are off-white so i have to stay with the warm greys. I've even tried Sea Salt which looks dull. I'm going for an LRV of 65+ so I'm trying the sample board with the Repose Gray at 75% with the idea of the adjoining kitchen/nook at 100%. We will see. Next I'll try the Gray Owl - OC 52 i think. Beware.......there are two Gray Owls! The Oc 52 is the lighter version. To complicate matters, I have a beautiful silver gray sectional sofa that I'm working with. I appreciate all of the posts here.

I am trying to help my friend with her basement room that she rents as a living space. It's currently painted an awful industrial bright cool white but it looks dishwater gray because of the light temperature that comes through the windows. Can somebody recommend some color combos that will make this room feel less stark and cold? Keep in mind the floors are a darkish brown. Her furniture is a black/brown color. Thanks so much!

Thank you @everdebz and @eam44 for the input. I did hire Kylie for a cabinet color consult and she did a good job (though I hadn't chosen a counter top at that point), I was more looking for a cabinet color that would be a "white" that would look good in a north facing room and this is from her consult - "SW Alabaster. This is a warm, creamy white. It will help to off-set the northern light coming in, without being as yellow as Dover White." She also suggested Westhighland White as a 2nd choice. SW 7566 but I feel I see a bit of pink...maybe I need my eyes checked. I do like Alabaster, but it seems a bit too warm for some of my counter top selections. What is the "nuance" of SW alabaster.... And does it contradict what Lori says about nuance below? From reading the chroma info from land of color expert @funcolors it seems I want "Colors with a nuance that is light and clear. Meaning choose paint colors that are clear but not vivid or bright", but how to pick one. Don't exactly understand how I figure out "nuance". Also, do I start with a paint color that will work in a northern exposure and then select a counter top to go with, or do I pick a counter top and then pick a cabinet color? I see so many counter tops that I like, yet I can't figure out how to pick the proper paint color that will work with the counter top AND the north exposure. And then to bring in a dark color for the island. Kylie suggested SW Cyberspace or SW Grizzle Gray 7068. I really like Grizzle Gray, but I am concerned it is too muddied and gray for the northern light. Will the gray stand out more? Say I chose something with green undertones (SW Urban bronze 7048) is the blue north light going to counteract to make these colors appear brown? or will the green tones be more prevalent. Bottom line I am still having a hard time figuring out what the natural light will do to the various paint colors. And because the house is under construction and my cabinet color choice needs to be made, I am not in a situation where I can wait until everything is in place.

Wow, this question has been asked a lot. Examples: The 7 BEST WHITE Paint Colours for a North-Facing Room: Benjamin and Sherwin Best Paint Colors for North-Facing Rooms The Best White Paint Colors for Interiors THE ONLY WHITE PAINT COLOR YOU’LL EVER NEED