Setting Site-Wide Colors

Colors can be set for your entire site in Site Settings. These colors can then be used in modules, columns, and rows to give your site a consistent color palette that can be updated from a single location. 

That means, if a client asks you to "change the shade of blue to a lighter blue," you only need to change it in a single location and it will update across your entire site.

Here's a button that's using the "Primary" color as its background, and an automatically generated variant, "Primary Light," as its background hover color:

These colors correspond to the Primary color set in Site Settings: