Color BUG with Black 100K
there is a problem with the color black, but only in this special workflow as follows:
open a new document in RGB > convert it or change the color mode to CMYK > define a new color with 0,0,0,100 > draw a form > reselect the form and check the color ... the 100K black has changed to a 4-channel black.
if you start right away with a new CMYK-document, everything is fine and you will always get you 0,0,0,100-black-color, but whenever you start with a RGB-document the whole black-color-thing is bugged forever! even if you save the "from rgb to cmyk converted" document, close it an reopen it: you still have the problem.
my guess is, the document itself is in cmyk, but the colorpicker and everything around that is still working in rgb-mode and is converting every color back to cmyk. in most cases it will not change any color, but black ist completely different, especially with black in 0,0,0,100.
(win 10, illustrator 25.2.3 (64 bit))
Gerald Gösseringer
shared this idea
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Cory, how do you 'specify 100% black in a CMYK document' exactly?
What color do you get for an object if you hit D?
What does the title of the document say in the tab?
How did you create it specifically? Do you use the legacy File > New interface or the modern one?
Can you share this test file? (you don’t have to keep the art in it). -
Cory commented
I'm having exactly the same problem. Each time I specify 100% black in a CMYK document, the 100% black is converted to 85c, 73m, 74y, 65k. This only happens when I specify 100% black; it doesn't happen with any other colors.
The default styles are all set correctly by the way.
The only workaround I've found is to create a 100%K color swatch and use that. For some reason, the swatch-specified color stays 100%K. However, when I specify %100%K on a piecemeal basis to any object in the document, the 100%K reverts to a rich black.
For what it's worth, this doesn't happen on every document, only on a few that I've updated from previous projects.
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Gerald, RGB documents use Web document profile, that has a default graphic style (you can access and change it in the Graphic Styles panel). It obviously uses RGB Black (that gets converted to a rich black). You can update the style by Alt+dragging a proper colored white-fill/black(100K)-stroke over its thumbnail in the panel. You can also change the black swatch in the Swatches panel.
All of this works as intended :) Not easy to grasp, but once you get how to change default settings, it works fine.
But you say that you fill the object with the 0-0-0-100, you have CMYK as the color mode, and when you reselect the object — the fill gets reverted to rich black by itself? If so — please share the video, because I can’t reproduce it. But first try to change defaults styles as I instructed above.
Sorry for the late answer — UV is deep, and we are few :)
