Hi Jan - thanks for all your questions! I appreciate your quest in finding a "warm white" for your walls - this is also a pigmented plaster wall - no paint here! Look for a "white" that is "not too gray, not too blue, not too green" - leaning more towards the warm yellows - squint a little when looking at the color. And most important, get samples and paint them on the wall - you'll be able to look at them in different lights - believe me they will change!