Why are bugs repelled by blue?

I just noticed this ; bugs don't like blue. Why ?

orksecurity7 years ago
They aren't.
Re-design7 years ago
I didn't know they were. I know that flying insects won't land on a porch ceiling if it's painted sky blue cause they just think it's the sky. I know this from personal experience.
Quest for Questions (author)  Re-design7 years ago
I think so... my room was painted blue cause' I'm extremely sensible to bugs. If you look at my skin, it's covered with scares from them.