Contrast is one of the most effective ways to add visual interest to your page and to create an organizational hierarchy among different elements. For contrast to be effective, however, it must be strong. Don’t be a wimp.
The Principle of Contrast states: Contrast various elements of the piece to draw a reader’s eye into the page. If two items are not exactly the same, then make them different. Really different.
Contrast not only serves to draw in the eye, but you can use it to organize information, clarify the hierarchy, guide a reader around the page, and provide a focus.
Contrast can be created in many ways. You can contrast large type with small type; a graceful oldstyle font with a bold sans serif font; a thin line with ...