Line
A point moving in space. Line can vary in width, length, curvature, color, or direction.
Value
Lightness or darkness of a hue or neutral color.
Color
The visual sensation dependent on the reflection or absorption of light from a given surface.
Texture
The surface quality of materials, either actual (tactile) or implied (visual).
Shape
A two-dimensional area or plane that may be open or closed, free-form or geometric. It can be found in nature or is made by humans.
Form
A two-dimensional area or plane that may be open or closed, free-form or geometric. It can be found in nature or is made by humans.
Space
The emptiness or area between, around, above, below, or contained within objects.