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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

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:

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

Am 16.01.2011 13:46, schrieb Thomas Krumbein:

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


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