That was enough for me to check it out and here is what I found:
There are numerous theories as to why – from fooling spiders and wasps into thinking the ceiling is the sky, to blue being a harbinger of good luck, to the color extending daylight, to scaring away evil spirits.
Sky blue ceilings were a popular color scheme for the Victorians, who preferred the colors of nature when painting their homes. Mustard yellow, ochres, browns, olives, terra cotta and the color blue were commonly used in exterior paint schemes. The warm earth tones reminded the Victorians of the outdoors around them, with the blue reserved for the porch ceiling to remind them of the blue sky even when the days were overcast and gray.
I am still undecided about doing this. If we do, I am sure I will choose a lighter shade of blue so that it does not appear to clash.
Have any of you ever heard of this?