Is there a way to change the default colour palette in ArcMap? Currently, for each symbol, I have to change RGB to CMYK to choose my colour (see screenshot). This is pretty annoying since all my colours are in CMYK.

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I also had a look at the utility tool AdvancedArcMapSettings.exe (more details in ArcMap Help) but it doesn't provide an option.

  • 2
    I dont know if this is still the case with 10.6 but version 9.3 was working only in RGB, meaning that internally all color where stored as RGB (the CMYK entered in the selector where converted to RGB, and converted again to CMYK at export if you choose that option...). So if CMYK value are important to you check if 10.6 actually work with CMYK value, if not check that the double conversion doesn't introduce (too much) error.
    – J.R
    Sep 24, 2018 at 16:01
  • More on arcgis, RVB and CMYK here : gis.stackexchange.com/questions/113161/…
    – J.R
    Sep 24, 2018 at 16:10

1 Answer 1


I did some more research by myself and it seems that it's not really possible (at least not what I hoped for):

Defining own styles for all ESRI symbols is definitively a bigger hassle than always change RGB to CMYK to select a colour...

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