Blue: This color is the one that stands for Libra, Sagittarius, Aquarius and Pisces. It is a very relaxing tone, related with intellectual matters, it helps to get relaxed and reach for peace and tranquility. It is recommended to paint the living-room in blue or light shades of this color. Besides, it is useful to increase creativity. Blue color equals wisdom, confidence, eternity, power and integrity.
I’m a Libra & have my bedroom painted a baby blue colour. I do agree with the tranquility and relaxation.