Lines may be light and slender or dark and thick. Lines may be perceived as tentative, elegant, assertive, forceful or even brutal. Psychological responses are attached to the direction of a line. Vertical lines are active. Horizontal lines are passive.
Diagonal lines have movement, energy or unbalance.
Color Color is a central element in our spoken language. We connect emotion with color. Blue can portray sorrow, red can evoke anger and green can convey envy. Color in works of art can also trigger strong emotional responses in the observer. It works hand in hand with line and shape to enrich the viewing experience.