Keyline

A keyline is a thin, usually solid, line used in graphic design and printing. It serves several purposes:

• Definition: It can define the boundaries of an element, such as an image, a text box, or a graphic. This helps to clearly separate the element from the background or surrounding content.

• Emphasis: A keyline can be used to draw attention to a specific element on a page or screen.

• Decoration: While primarily functional, a keyline can also contribute to the overall aesthetic of a design.

• Technical Marking: In printing, a keyline may refer to a non-printing line used to indicate the position of an element, especially when multiple elements are being combined or overlaid. This helps ensure accurate alignment during the printing process. This meaning is less common in modern digital workflows.

The thickness, color, and style (solid, dashed, dotted) of a keyline can vary depending on the design and its intended purpose. The term is most often used in print design but is also applicable to web design and other forms of visual communication.