In Illustrator, using pure color shapes (100% cyan, 100% magenta, etc.) what’s the best method to overlay them so this effect is obtain (colors blend together, instead on merely being added one on top of the other, and a CMYK offset effect is created). Should I use multiply, but with all the shapes in the same folder? CMYK offset effect

  • Can you please clarify what you are asking. Are you trying to achieve the effect shown in the example, or is that your attempt, and if so, what's wrong with it?
    – Billy Kerr
    Feb 17, 2018 at 19:39
  • I was attempting to reproduce this example, found online.
    – Parneix
    Feb 18, 2018 at 22:30

1 Answer 1


If you just want to do it visually then just set the transparency to multiply as you've figured out. You can just set everything at once without worrying about folders.

enter image description here

If you want the black look like it's mixing, make sure you're not using a rich black (i.e. one with CMY components). You may want to lighten the black a bit to enhance the effect.

If you want to actually have inks mix when printing, which is called overprinting, you need to set that using the attributes panel. But you won't see the effect right away. You have to go to view->overprint preview.

enter image description here

  • Thank you very much for the detailed explanation: that’s exactly what I was looking for.
    – Parneix
    Feb 18, 2018 at 22:31

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