In digital photography there is no longer a physical reference (such as film or a transparency) to which people can refer when gauging color accuracy.
When it comes to color, digital imaging allows us undreamed of freedom to make the scene look just how we perceived it at the time of shooting. Managed properly, the freedom that digital photography gives you to adjust the colors and brightness to suit your taste is wonderful, and it puts the photographer firmly in charge. Badly managed, it can be a nightmare.
The scenario that all of us dread is when the image has been optimized and worked on until it looks perfect on the screen, is then ...