For example, red is an emotionally charged color. It can generate excitement, passion or be provocative. It can also conjure up image of blood or rang. Green, like a dark or forest green, provides a feeling of comfort and might be a good choice to include in a piece acquainting customer with a new product. Other greens might not give that same feeling.
Institutional green can remind people of hospitals or even government offices.
Orange generally suggests warmth, happiness and vitality. Orange and blue are a good combination because together they give the impression of strength. Gray provides an air of classic and timeless quality to services or products. It's a very sober or humorless color. Most of your printed pieces will include black, so gray is an easy color to create using screens.