I found this on line about color threapy
White - Purity. Used for cleansing and purification.
Black - Protection. Used to ground, protect, and strengthen.
Red - Sexuality. Used for strengthening the life force and increasing will power.
Orange - Energy. Used to increase optimism and joy.
Yellow - Mental activity. Combats depression.
Green - Balance. Calming and relaxing.
Blue - Peace. Relaxes and quiets energy.
Indigo - Intuition. Achieves deeper levels of consciousness.
Violet - Inspiration. Stimulates dreams.