Red is an energizer. It can stimulate circulation, energize the senses, remove sluggish conditions, inertia and feelings of tiredness.
Orange
Orange can help someone to feel optimistic and confident, and overcome fears. It can help people feel less anxious in social situations. It builds the lungs, removes cramps and muscle spasms.
Yellow
Yellow uplifts the spirits, emphasizes the joy of living, aids in digestion. It is useful in counteracting depression.
Green
Green promotes balance, security and stability. It promotes, in particular, the healing of the heart.
Blue
Blue counteracts restlessness, promotes self-expression. It is cooling, reduces fever and inflammation.
Violet/Purple
Violet promotes meditation and creative imagination, purifies and nourishes the blood and restores peace and calm.