Line

• Line is the most basic visual element. Lines can be used to define shapes and figures, but also to indicate motion, emotion, and other elements.
• A line has a beginning and an end. If a line completes itself, then it forms an outline, or a contour. An outline creates a shape.

Shape

Emil Bisttram "Penetration" C. 1938 Oil on Canvas

Emil Bisttram “Musical Rythms” C. n/d Watercolor on Paper

• Shape builds on line and color, as it has to be made of one or both of these. Shape is the property of a two-dimensional form, usually defined by a line around it or by a change in color. It has width and height, but no depth.
• There are two main types of shapes: Geometric or Organic.

Form

• Form is a three-dimensional shape, though it is often used to describe the illusion of three-dimensionality, as well. Like shape, form can be geometric or organic.

Color

• Color is an element consisting of three properties: hue, value, and intensity.
• Color can be used to duplicate reality, set mood, inspire feelings in the viewer, or highlight importance. Color is present when light strikes an object and it is reflected back into the eye, a reaction to a hue arising in the optic nerve.
• When we use the term “color” casually, what we usually mean is hue. Hues appear on the visible spectrum. On the spectrum, we see pure hues. These can be divided into primary, secondary, and tertiary colors.