I'm trying to create an image that contains a set of logos. Each logo has different colors and I need to neutralize them. I tried converting the image colors to gray scale but it's not uniform, some grays and darker than others. The end results should be something like this:

enter image description here

How can I achieve this in Illustrator, preferably as a filter that I can toggle on/off?

  • why cannot you select all the objects and set any color you want to all of them?
    – Ilan
    Commented Sep 12, 2014 at 17:56
  • @Ilan some logos are rather complex groupings of paths and setting a color doesn't maintain their design
    – greener
    Commented Sep 12, 2014 at 18:01

1 Answer 1


All this logos have the same fill color (C:45, M:30, Y:25, K:0).

So, to convert the logos to grayscale:

  • Select all the shapes.

  • Edit > Edit colors > Recolor Artwork

enter image description here

  • Change the numbers of colors displayed to 1

enter image description here

  • Change the colorization method to exact.

enter image description here

  • Double-click the color box > Select this color (C:45, M:30, Y:25, K:0) > Click OK.

Example (two at the same time):

enter image description here

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