These drawings demonstrate how the principle of contrast can be used to highlight design elements. Contrast is defined as the result of comparing one thing to another and seeing the difference. It is created in a line drawing by using a variety of patterns and values. In the first drawing the background has a dark value with the objects having a lighter value. The patterns include a horizontal linear lines on the wall, wood pattern on the floor with a diagonal lines on the lamp, criss-cross on the basket and light stippling on the art work.
In the second drawing the value contrast is switched. The background is a light value with the table and objects drawn in a darker value. The patterns include a dark criss-cross on the lamp base, wood lines on the table and a dark value on the picture frames.
Helpful Hint: Notice the drawing below does not have a variety of patterns or values. The design elements blend together. There is not enough value contrast to distinguish one object from another. The values are in the middle range. The patterns mostly stippling which are repeated too often to create contrast.