Blue is an emotional color. People with a blue personality stay within themselves and do not trust people very much. They watch every move others make.
Pale shades of blue show someone who wants everything in order. Their closet is immaculate. They know where any piece of clothing is and most likely how long it will take them to get it out of the closet.
As blue moves to the deeper end of color, it becomes more moody and shows it. With royal blue, one can be on a high or in the deepest of wells. This color would probably be worn by one who is deciding to parachute because it would mean one needed to make a quick decision. When looking back on that decision though, the person pulling the ripcord would not be so sure they made the correct decision.
Blue people think with their emotions. They are either way up or way down; feeling all the emotions they can experience on their way to either.
Crying when they are happy or sad, they are feelers. Having a need to feel every thing, they leave themselves open to others. Quickly they take the mood of any person they are around whether they are upset or elated. Feelers don't even know why their emotions run the gambit. They are products of their environment.