Elements of Art Line- Lines are marks made by a pointed tool: brush, pencil, pen, etc. Lines can vary in width, direction, curvature, length, or color. Shape - Shapes are formed wherever the ends of a continuous line meet. Geometric shapes such as circles, triangles or squares have perfect, uniform measurements and don't often appear in nature. Organic shapes are associated with things from the natural world, like plants and animals. Color - Color wheels show the primary colors, secondary colors, and the tertiary (intermediate) colors. They also show the relationships between complementary colors across from each other, such as blue and orange; and analogous (similar or related) colors next to each other such as yellow, green, and blue. Black and white may be thought of as colors but, in fact, they are not. White light is the presence of all color; black is the absence of reflected light and therefore the absence of color. ...