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Participant
October 31, 2018
Question

Do I need to create an RGB and CMYK version of my CC Library?

  • October 31, 2018
  • 4 replies
  • 823 views

I am creating a CC Library for our corporate brand and I noticed that we currently have an RGB and CMYK version of our colors. To me that does not seem necessary but maybe there is something that I am missing or do not know. Please let me know your thoughts on this. Thanks!

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4 replies

D Fosse
Community Expert
Community Expert
November 3, 2018

Yes, but which CMYK? There's no such thing as a "generic" CMYK - it always corresponds to a particular set of press conditions.

The Photoshop/InDesign/Illustrator default just happens to be US Web Coated (SWOP), and so predictably almost all conversion tables are based on that. But if you're outside North and South America, the SWOP standard doesn't even apply. It's not used anywhere else!

In other words, any CMYK numbers based on that are completely worthless for most of the world.

For RGB it's simpler - a fair assumption would be sRGB.

Inspiring
November 1, 2018

Having both is good practice.  Your company may be involved with video production and many vendors do not want to do any color space conversions ( i.e., CMYK to RGB ).  Powerpoint presentations are also RGB based, so having the files in RGB saves some time.  The CMYK library elements can be used appropriately for print environments.  I wonder if you have a library that consists of spot color elements as well as the RGB / CMYK?

NB, colourmanagement
Community Expert
Community Expert
October 31, 2018

Hi

Your question raises a few questions itself:

So, I guess these are a library of colors which are used in document creation by your company?

For solid areas like logos text etc?

And the color library already exist in both RGB and CMYK? [do you know the ICC color profiles for the RGB and CMYK?]


Are they used for making printed work?

If so how is that work printed?

It's important to understand that the relationship between RGB and CMYK values is controlled by the RGB profile (probably a workingspace like Adobe RGB?) and a CMYK ICC profile - and importantly that profile needs to be the right one as it contains the recipes for making colors in a print process (e.g. offset print like magazines/ reports).

Is the system you're using currently working well?

I hope this helps

if so, please do mark my reply as "helpful", so others who have similar issues can see the solution

thanks

neil barstow, colourmanagement

kglad
Community Expert
Community Expert
October 31, 2018