Publishing : 2909


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Subject:	Re: RGB color values for many brick colors
Newsgroups:	lugnet.publish, lugnet.trains, lugnet.faq, lugnet.off-topic.geek, lugnet.cad
Date:	Wed, 27 Jun 2001 21:20:32 GMT
Viewed:	4683 times

In lugnet.publish, Larry Pieniazek writes: > > http://www.baseplate.com/colors/gif-pic.html > > Cool. Do you know the actual CMYK values, or are you saying that everyone > ought to do that sampling on their own?? I'm assuming "CMYK" translates to something along the lines of Blue,Red,Yellow,Black? Or more appropriately "Cyan","Magenta","Yellow",K? (what the heck would K be?) If you had the CMYK values, could these be mathematically translated into RGB,HSL? (Why did I think HSL was HSV? -- Hue, Saturation, Lumination?) Or visa versa? DaveE

Message has 2 Replies:

		Re: RGB color values for many brick colors
(...) CMYK is Cyan, Magenta, Yellow, and Black (subtractive color model vs RGB additive color model). CMY gives you a muddled gray/brown so K is added for pure black. Go to (URL) then option 2b, Color Theory for a nice presentation on the topic. I (...) (23 years ago, 27-Jun-01, to lugnet.publish, lugnet.trains, lugnet.faq, lugnet.off-topic.geek, lugnet.cad)

		Re: RGB color values for many brick colors
(...) HSL and HSV are both valid models, IIRC I think they are close but not the same. I forget the difference. I think Luminance (and the entire RGB model too) is more useful or applicable for things that do color by giving off light, like monitors (...) (23 years ago, 27-Jun-01, to lugnet.publish, lugnet.trains, lugnet.faq, lugnet.off-topic.geek, lugnet.cad)

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		Re: RGB color values for many brick colors
(...) ought to do that sampling on their own?? I was at an ink manufacturer recently and they can take colors in either RGB or CMYK but prefer the latter. (they also have spectrophotometers that you can just put things under and get ink recipes from (...) (23 years ago, 27-Jun-01, to lugnet.publish, lugnet.trains, lugnet.faq, lugnet.off-topic.geek, lugnet.cad)

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