The ceilings of front porches old and new have long been painted blue for a variety of reasons. Tour guides in Charleston, South Carolina, claim that the color keeps the bugs at bay and was originally introduced to keep spirits away. Some claim it extends the daylight hours. Some simply like the color, since it reminds them of the sky. In the South, the perfect front porch color is referred to as Haint Blue. Fortunately, most of the major paint companies have a formula for that perfect shade, making finding the right color easy.