Re: [libreoffice-marketing] branding colors - missmatch

Hey Bernhard,

not shure, if you really understood the problem:

It is not the color RGB (24,136,3) - this is the same value in Adobe CS
by opening Logo-File (png, jpg or svg).

But again, RGB is not for printing! Real world uses CMYK Colors.
So, when I change to the RGB Color to CMYK, value is: 79,0,100,0 in
Adobe CS.
Your branding-color table calls CMYK (85,0,98,36), which is real darker
then the RGB color!

You understand the missmatch? I can use your CMYK (85,0,98,36) or I can
use your RGB, which is CMYK (79,0,100,0). Both are different!

My personal opinion: I will use CMYK (79,0,100,0), which appears nearer
to the green in Web :-)

Best regards
Thomas

Am 27.01.2011 02:09, schrieb Bernhard Dippold:
> Hi Thomas, all,
>
> CC'ing the design list as I think this topic should be discussed there.
>
> Thomas Krumbein schrieb:
> > Hey folks,
> >
> > it´s me again - I still do not have an real answer regarding colors.
>
> Sorry - but as I don't possess Adobe CS4, I can't reproduce your problem.
> > We now have to do the printing for CeBIT 2011 - and I like to get an
> > clear answer from all those people, who have made the color "branding
> > guidelines".
>
> Christoph Noack is the one who provided these colors - based on some 
> thoughts from the design team.
> > Unles I do not get an clear answer here, I will decide the colors for
> > myself - and than I will use CMYK 79, 0, 100, 0.
>
> I don't understand what's the problem with the values written on the 
> wiki site. As they will be printed on "real" material, they will look 
> different from their representation on the web.
>
>
> > Again the link for comparing colors:
> >
> > www.ooodev.org/images/downloads/LibO/farbunterschied.pdf
>
> This file shows really dark green tones - and imported in Inkscape it 
> reads #007c37 for the darker and #1cb24b for the lighter green.
>
> None of them is #18a303 what it should be.
>
> I could send you a screenshot (or the SVG file), but I assume that this 
> result is based on several conversions between applications, file 
> formats and color models, so it would probably not help.
>
> As we can't avoid conversion problems with different applications, we 
> should stay with the color codes as far as possible. Even with the same 
> color codes they will look different when presented on different 
> monitors or printed by different printers.
>
> (I remember a strange color problem with Adobe conversion to CMYK back 
> in 2006  on the OOo-Art list, where only Illustrator showed different 
> colors or converted to other values while all the other applications 
> showed the same color. Can't search the archive at the moment, but it 
> was related to the Art Style guide we created then - and perhaps a 
> comment made it in the guide too)
>
> So please use
> HEX 18a303
> RGB (24,136,3)
> CMYK (85,0,98,36)
>
> some more comments below...
> > Best regarsds
> > Thomas
> >
> >
> >
> >
> > Am 16.01.2011 13:46, schrieb Thomas Krumbein:
> > > Hey,
> > >
> > > I try to create some marketing-material for LibO, unfortunatly I have
> > > some mismatch in colors:
> > >
> > > Following the branding guidlines the main color for "Libre" is "Green
> > > 1", Hex 18A303, RGB 24 163 3, CMYK 85 0 98 36
> > > When I use the cmyk values (for printing), color seems to be really
> > > "darker" then the LibO Color (as seen in Web).
> > >
> > > I am using Adobe CS4 - Illustrator.
> > > When I try to open the svg-logo-file, I got an error.
>
> I'll send you a file converted to "plain SVG" offlist. Perhaps you can 
> open this one.
>
> > > When I open the png file, I can pick up the color of the "Libre" word:
> > > Hex 25A22D, RGB 37 162 45, CMYK 79,0,100,0
>
> I don't know enough about color definition in PNG. But the logo has been 
> exported from Inkscape with the right color, so it might be possible to 
> find out, how the color values are stored.
>
> Did you have a look at the file with a different application than 
> Illustrator? Does the color differ?
> > > Well, this values are really different!
>
> Yes indeed.
> > > So, what to do?
>
> Ii just tried to save a SVG file containing a green rectangle and open 
> it in an editor. It reads:
>
> style="color:#000000;fill:#18a303;fill-opacity:1 ...
>
> The exported PNG file doesn't show any readable values because it is 
> compressed, I suggest.
>
> But as well in Inkscape as in GIMP the color stays #18a303. so I don't 
> know if there is a problem with the .png file you got or with the color 
> rendering at yours or somewhere in-between.
>
> Perhaps the SVG file can be opened...
>
> Best regards
>
> Bernhard


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