Windows 10 gives you a significant amount of control over color themes.

Open Settings > Personalization > Colors and you can set the operating system to either dark mode or light mode. These themes change the color of the Start menu, taskbar, action center, File Explorer, settings menus, and any other programs that are compliant with these palette changes.

There is also a custom option that will let you set one theme for Windows menus and another for apps. Want a little more color? There are swatches of color themes available to choose from that can help your menus and taskbars really pop.