Konica Minolta bizhub PRO C6500P - Manual (Page 161)

Color Tools 153
3. Click Add .
4. In the Color name box, enter a name for the spot color.
5. Enter the RGB source values as they appear in the source file.
6. Enter the CMYK target values you want to use, or from the
(Entire Predefined List) , select a color from the list of available
colors. The CMYK target values are automatically entered.