: Conversion of RGB values to CMYK in InDesign concerning I experienced odd tints of grey-color after print out. Now I know, to avoid this and get clean grey color, only K value should be used

@Alves566

If you don't have a profile that is set to change specific RGB range into K channel you will always get "black" split into all CMYK.
In general if you want to use grey it would be wise to add it only in CMYK space.

Remember that a)printing machines add some paint in all channels and b) sometimes (as in very often) printers have their RIP set to add some paint in different plate to compensate for that. For example for the last 7 years I've been working with printer that had 10% extra in the M on machine. So that would relate to "odd" color in something that should be only K.

Vote Up Vote Down