If you want the colors in your images to appear consistent as the images pass through the digital workflow, from camera, through computer to printer, it’s essential that they are managed.
Digital imaging hardware varies in how broad a range of colors each can handle and in how each distinguish colors. Left to themselves, each device will present different color versions of your photographs. In other words, color is device-dependent.
What is needed is a procedure for keeping the appearance of colors the same from shooting to final display. The software that coordinates this is called a Color Management System (CMS for short), and for any serious photography you do need it. The good news is that nowadays color management is at least ...