Color, saturation, and intensity all play a factor in how calming an LED light is. This is most important indoors, especially in bedrooms, but also something to keep in mind if you want a certain effect for your porch lights. Blue lights are the most calming, followed by other cool colors, like green. Deeper pigments tend to be more calming than bright colors, even within different shades of blue. Of course, something like floodlights won’t have the relaxing impact of a soft porch light.