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.