Healing properties. The ancient Egyptians and Chinese often practiced chromotherapy — using colors to heal. Sometimes referred to as light therapy or colorology, chromotherapy is still used today as a holistic or alternative health treatment. Indeed, a more modern interpreter of chromotherapy, Edwin Babbitt, stated in his 1878 work, The Principles of Color Therapy, that "the blue ray is one of the greatest antiseptics in the world." It is believed to soothe illnesses and treat pain. Buddhists recommend the blue lapis lazuli stone to bring inner peace. June McLeod, author of Colors of the Soul, agrees with blue's calming power — particularly shades of sky blue. Use this light and restorative hue to create a truly relaxing bathroom.