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Beyond the Basics Default colour space for Inkscape
  1. #1
    therobster therobster @therobster

    I assume the default colour space for Inkscape is sRGB but I have noticed that if I create some basic vector shapes in Inkscape and fill them with colours, then I open Adobe Illustrator, make sure that's in sRGB and create the same shapes (same RGB settings) that the colours are actually slightly different. It's most noticeable with greens and to some extents reds. If I take a screenshot and get the RGB values of the "same" colours in the two programs then the RGB values are not the same, so there's definitely a difference (it's not just my eyes).

    I would have thought sRGB would be the same no matter which program was using it, i.e. an RGB value of "x,y,z" should display the same colour as it's from the same colour space?

  2. #2
    Tyler Durden Tyler Durden @TylerDurden

    Have you read the replies to your previous posts?
    https://inkscape.org/forums/beyond/inkscape-colour-space/

  3. #3
    therobster therobster @therobster

    Yeh but I was trying to find out any specific differences between sRGB in Inkscape vs Illustrator 

  4. #4
    Tyler Durden Tyler Durden @TylerDurden

    Did you set the ICC profiles to match?

  5. #5
    therobster therobster @therobster

    I think it's all the same but could have double-profiled somewhere....I'm going through the menus looking for what I might have done wrong.

  6. #6
    Tyler Durden Tyler Durden @TylerDurden

    Yeah. There are a number of places to set in Inkscape, plus the button in the bottom-right corner of the workspace, plus who knows how many places in Ai.

    Then there is the pesky issue of rounding... float vs integer and all that stuff in the weeds I barely grasp.

    If I get some free time, I'll try to match Ai to Inkscape and see what I get.

    Cmssettings
  7. #7
    therobster therobster @therobster
    *

    Hi thanks for the reply. I can't actually find the Adobe RGB colour space in the Inkscape colour management. In the menus I have gone to: Edit > Preferences > Color Management.

    In the Display Adjustment section in the Display Profile drop-down menu there are options for sRGB, Epson sRGB etc. I take it if Adobe RGB was available it would be in this menu? In the link you posted earlier, if I'm understanding the article correctly I think I need to find the Adobe RGB ICC profile on the web, download it and then place it in one of the folders mentioned in the article. Then it should be selectable from the Color Management section of Inkscape. Does that sound correct or am I misunderstanding it?

    Thanks! :)

  8. #8
    Tyler Durden Tyler Durden @TylerDurden
    😀

    IIRC, that is correct.

     

  9. #9
    Tyler Durden Tyler Durden @TylerDurden

    I tried matching Inkscape to Illustrator-CC 17x to Inkscape by setting Inkscape's CMS to Adobe RGB (I have Ai and Inkscape on a machine at the office)...   but, no joy. The red FF0000 is markedly different between the two, just as you describe.

    Admittedly, this is not my area of expertise, but I'll look further into it and chime back if I make any progress.

  10. #10
    Tyler Durden Tyler Durden @TylerDurden
    *

    I did get better results by switching the Inkscape preferences to "Retrieve profile from display", after setting the CMS to Adobe RGB (1998). There were subtle differences, but I'm not sure how visible they might be.

    Screenshot attached with Ai settings shown.

    Ai Vs Ink
  11. #11
    therobster therobster @therobster

    That's great, thanks. I can't get it to work all that well either...Inkscape is great for most things but color management seems to be a weakness (not complaining, it's free after all!)

    I think I might start moving into Illustrator as I'm getting more into printed designs these days and AI just seems to have better colour management in general.

  12. #12
    Tyler Durden Tyler Durden @TylerDurden

    Ai is regarded as the industry standard. If you can afford it, it will do most everything you want.

    Inkscape can add complementary value:

    "To position all the atoms in different rotations, I used the tweak tool in Inkscape. If it wasn't for that tool, I'd probably still be rotating atoms one at a time in Illustrator. Thanks to all the people who make Inkscape possible. It's a wonderful tool."

    https://alpha.inkscape.org/vectors/www.inkscapeforum.com/viewtopica90e.html?t=16801

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