What is the primary function of a style guide in design?

The primary function of a style guide in design is to maintain consistency in branding and visual design. A style guide serves as a comprehensive document that outlines how various design elements should be used, including logos, typography, color schemes, and imagery. By providing clear guidelines on these components, it ensures that all designs adhere to a cohesive visual language, which is essential for building and maintaining a strong brand identity. Consistency across all design outputs helps create recognition and trust among target audiences, making the style guide an invaluable resource in any design project. This uniformity is crucial not only for individual materials but also for the overall perception of the brand in different contexts.