Blue is the color of the Throat Chakra, also known as Visuddha.
This chakra is located in the throat. It is linked to the throat, neck, hands, and arms.
The Throat Chakra is connected with speech and hearing, and encourages spiritual communication. Opening the Throat Chakra is said to improve clairaudience.
Gemstones that will aid the Throat Chakra include turquoise and aquamarine.