Activating Colors: Yellow, orange, red (advancing, extroverted hues) stand out To greet, dominate, inspire conversation, pumps the adrenaline, wake up, turn on heat. Golden or lemony yellows are good for home or offices and kitchens- Unleash creative juices.

Calming Colors: Cool colors - blues, green, purple - will pacify, staying Quietly in the background to calm and restore

Neutral Colors: öUn-colorsä - brown, beige, gray, white, taupe, neither activate nor pacify rather combine and co-operate

The Case Against White
Ceilings -almost without exception- should be white for the benefit of persons working in the room. This allows for walls and equipment to offer the needed contrast to avoid eye strain. However, the dental patient is looking directly at a white ceiling, white grids, white fluorescent or recessed lighting, with no hint of contrast to ease any eyestrain. No human sense - including vision - can respond constantly to fixed stimuli. While white light is physiologically stimulating, it may also be psychologically boring. Such boredom (with white) might prove irritating and hence be reflected in physiological arousal.

The Case for Color
The following attributes, reactions, associations as related to health support have been linked with the corresponding colors below:

Pink: soothes, acquiesces, promotes affability and affection
Yellow: the color nearest to the light, expands, cheers, increases energy, hospitable, cozy, comfortable, upbeat, bananas, lemons, the sun, balances depression, holistic, celestial, detachment, strengthens nerves, cleanses, heals scars.
White: Purifies, energizes, unifies, in combination enlivens all other colors.
Black: Disciplines, authorizes, strengthens, encourages independence
Orange: Cheers, commands, stimulates appetites, spicy, brash, invigorating, sunny, balances confusion, happiness, dance, joy, uplifting, can treat low blood pressure if red is too powerful.
Red: Empowers, stimulates, dramatizes, competes, symbolizes passion, increases heart rate, symbolizes blood, fire, apples, tomatoes, counteracts mental fatigue, distracts human equilibrium, increases restlessness, raises blood pressure, combats drowsiness.
Green: Midway color in spectrum, balances, normalizes, refreshes, encourages emotional growth, peaceful, well-being, optimism, renewal, restful, grass and leaves, calms down emotional stress, counteracts nervousness, cool, fresh, soft, nature, reduces nervous and muscular tensions, promotes harmony, stability, sympathy, combats infection, creates wholeness, antiseptic properties, adaptability.
Blue/Green: Purity, immunity, calmness, anti-inflammatory, treats nervous tension, boosts immune system, counteracts infection and septic conditions.
Purple: Comforts, spiritualizes, creates mystery, draws out intuition, relaxes mental tension, protects from outside intrusions, reduces outside pressures, holistic, soft, flowing, the most dominantly aesthetic in appeal, can elevate humans into a higher state of consciousness, strengthens weak cell structure, restores energy.
Blue: Relaxes, refreshes, cools, produces tranquil feelings and peaceful moods, soothing, calming, comfort, sense of well-being, reduces hyperactivity; found in nature, restorative, the sky, protects from outside interference, prevents emotional draining, prolonged quieting effect, celestial, underestimates time, cleanses, astringent, deeper colors more valuable, inspires, devotion, reduces inflammation, treats headaches, tension, insomnia and diseases of eye, ear, nose and throat.
Mauve: Reduces stressful worrying.