ith lines around them, areas of color become very defined. Each area is a shape that appears stronger than it would appear in a photograph. Such definition gives the overall look a quality that can't be achieved any other way. That there is charm in a drawing rendered by the human hand is universally agreed. Why else would we commission each other to draw and color such work? So then, the decision becomes when to use a line and color illustration in lieu of a photograph or more realistic style without lines. In general, it is a given that an illustration without lines and takes longer to do. So, one reason to use line and color instead is to save time.
The Line and color style is often used when a photograph is not available or possible to take. It is best used in situations where stylization will enhance the content better than a photo or realistic illustration style. Storybooks, ads, brochures, editorials, posters, comic strips, Web sites, animated and captioned cartoons all make great use of line and color illustrations.
A complex image is easier to read when rendered
in line and color.
Even when using the most contrasting of colors, this illustration would be far more difficult to visually define without lines. For such complex illustrations, if the branding direction is not prohibitive, a whimsical style is helpful. It not only helps to justify bright colors and a linear look, but also lends a lighter feeling that will invite interest rather than scare it away.