Since sunlight changes throughout the day and is affected by season, latitude, and weather, what natural light looks like is somewhat in the eye of the beholder. However, when it comes to lighting, 2700K produces warm white light, while color temperature between 4000K produces cool or bright white. Bulbs of 4500K or above have a blue-white temperature that some people feel most resembles daylight, but others don't find the light from bulbs in this range to be pleasing.