Test paint samples by applying large 24 by 24 inch swatches on primed white walls near your flooring and trim to clear visual distractions. Observe these samples multiple times a day—morning, noon, afternoon, and evening—to see how changing natural light and artificial bulbs affect color appearance. Take photos for comparison and note which sample holds consistent, flattering undertones. This process ensures your chosen color looks great in your home’s specific light conditions.