The variations available from the Color tone slider can be similar to those of White balance and Picture Style.
However, there are times when Color tone adjustment gives the results you want. This video shows the Color tone set to 0, +4 and -4.
Color saturation is one of the Picture Style parameters, but has its own slider in the Tool Palette. As you can see from this video (0, +4 and -4), it increases the vibrancy of the colours.