When you have multiple web professionals working on one site, it’s important to consolidate all your design decisions into a single reference source. This helps to keep your vision consistent across all pages and elements.
In a nutshell, a web design style guide is a reference source where you collect and present all of the design decisions for your website. This includes its color scheme, typography, spacing, icons, imagery, and much more.
Color plays a vital part in how your website and your brand are perceived and remembered. Therefore, you’ll want to make sure to define your primary colors, usually a maximum of three.
To complete your color palette, you’ll also need to include secondary, tertiary, and neutral colors.