I'm not sure if you've ever heard the expression or terminology of "haint blue" but you'll hear it a lot if you are living in the South, especially in the areas where the Gullah heritage is evident.  "Haint Blue" is an old Gullah belief that if folks painted their ceilings blue it would ward off the evil spirits.  They also painted the areas around the windows and doorways (the trim) in the belief the evil spirits would stay away.

The Gullah's also believed that if they painted the ceilings blue, the insects would be fooled into thinking it was the blue sky and would stay away........Makes perfect sense to me. 

But you might ask if there ACTUALLY IS a color called "Haint Blue."  The answer to that is definitely not.  The Gullah folks used whatever color or pigments they had available, thus one will see varying shades of blues ranging from sky blue to teals and darker shades. 

We have Decorators in the Hilton Head and Bluffton area who use their signature color blue (depending on their tastes) and just call it "Haint Blue."  It's very popular and accepted to see these colors used in Southern homes today. 

PLEASE VISIT MY WEBSITE FOR INFORMATION ABOUT HILTON HEAD AND BLUFFTON REAL ESTATE.  I WELCOME YOUR QUESTIONS, REFERRALS AND INQUIRIES.