Greys. Who doesn’t love ’em? When it comes to building websites, it can be handy having a few shades of grey at your disposal, no matter your colour palette. We use them for borders and subtle dividers, shadows, and to indicate state changes without overwhelming the user with colour. Some designers feel that a website needs quite a few shades of grey in order to convey subtleties. I once worked on a project that literally had 50 shades of grey.