Physiological Effect: Red has been shown to increase blood pressure and stimulate the adrenal glands. The stimulation of the adrenals glands helps us become strong and increases our stamina. Pink, a lighter shade of red, helps muscles relax.
Psychological Effect: While red has proven to be a color of vitality and ambition it has been shown to be associated with anger. Sometimes red can be useful in dispelling negative thoughts, but it can also make one irritable. Pink has the opposite effect of red. Pink induces feelings of calm, protection, warmth and nurture. This color can be used to lessen irritation and aggression as it is connected with feelings of love. Red is sometimes associated with sexuality, whereas pink is associated with unselfish love.
Physiological Effect: Yellow has proven to stimulate the brain. This stimulation can make you more alert and decisive. This color makes muscles more energetic and activates the lymph system.
Psychological Effect: Similarly to Orange, Yellow is a happy and uplifting color. It can also be associated with intellectual thinking: discernment, memory, clear thinking, decision-making and good judgment. Also aiding organization, understanding of different points of view. Yellow builds self-confidence and encourages optimism. However, a dull yellow can bring on feelings of fear.
Physiological Effect: In contrast to red, blue proves to lower blood pressure. Blue can be linked to the throat and thyroid gland. Blue also has a very cooling and soothing affect, often making us calmer. Deep blue stimulates the pituitary gland, which then regulates our sleep patterns. This deeper blue also has proved to help the skeletal structure in keeping bone marrow healthy.
Psychological Effect: We usually associate the color blue with the night and thus we feel relaxed and calmed. Lighter blues make us feel quite and away from the rush of the day. These colors can be useful in eliminating insomnia. Like yellow, blue inspires mental control, clarity and creativity. However, too much dark blue can be depressing.
Psychological Effect: While comforting and protective, black is mysterious and associated with silence and sometimes death. Black is passive and can prevent us from growing and changing.