White spaces are the blank areas of a page, regardless of the color you choose to give them. Use white space deliberately in your design, rather than as an afterthought. Good use of white space guides the reader and defines the areas of your page. White space that is used deliberately is called active white space and is an integral part of your design that structures and separates content. Sometimes the strongest part of a design is the active white space. Passive white space includes the blank areas that border the screen or are the result of mismatched shapes.