input: [Colour] Blue [Muddy/Dark] Deeper shades of blue can reflect loneliness, blocked perceptions, or someone given to rushing into things. Blue may sometimes represent a tendency to be moody and depressed, if it appears to be smoky, or greyish. Ailments associated with blue are usually throat, or mouth/teeth related. [Clear/Bright] 
output: The color of quiet and calm. Blue also represents spiritual devotion, seeking truth. Blue is the colour of communication. A lighter shade means active imagination. Finding royal blue means the person is given to honesty, and has good judgment. Any blue in the aura is good to have, but deep, clear blue is the best. One with deep blue in his or her aura shows a person who has found their purpose in life.