I do not know the colour of the walls in this particular project as they were already painted this colour before staging. While I don't have a specific go-to cream that I use, I have recently used Mannequin Cream by Benjamin Moore and Swiss Coffee by Behr. The trim colour is usually dictated by other fixed, white surfaces in the home, such as white cabinetry or tiling, and is chosen to complement these elements.

Thank you very much! I appreciate the suggestions coming from a professional.