Blue relates to self expression. Speech, communication, the ability to communicate our needs and requirements. Spirit of truth and purpose.
Blue is calming. It can be strong and steadfast or light and friendly. Almost everyone likes some shade of the colour blue.
A natural colour, from the blue of the sky, blue is a universal colour. The cool, calming effect of blue makes time pass more quickly and it can help you sleep. Blue is a good colour for bedrooms. However, too much blue could dampen spirits.
In many diverse cultures blue is significant in religious beliefs, brings peace, or is believed to keep the bad spirits away.
Blue conveys importance and confidence without being somber or sinister, hence the blue power suit of the corporate world and the blue uniforms of police officers. Long considered a corporate colour, blue, especially darker blue, is associated with intelligence, stability, unity, and conservatism.