Why you should use CMYK color, not RGB, in InDesign
What you are looking at right now as you read this, is RGB color. It is a combination of Red, Green and Blue. Those are the colors that make up the colors that you see on a computer screen.
When look at something that has been printed on paper, for example a magazine, you are looking at CMYK color. CMYK stands for Cyan (a light blue), Magenta (a purplish red), Yellow, and Black. K stands for black and is used because B might be confused with blue. It is also known as the Key color.
When you create a document in InDesign or QuarkXPress, you need to think in terms of the CMYK color space, even though you are viewing it on a computer, which is RGB. If you want to be successful in print, you need to learn about CMYK color. Telling a printer that it "looked different on your monitor" just exposes your ignorance. Take a print production class at your local community college, learn how printing presses work, and you will become a valuable designer with InDesign.
If you would like to get personal on-site software training in Adobe Photoshop, Illustrator or Dreamweaver in the greater Phoenix, Arizona area, please contact me. Paypal accepted, morning appointments only.
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Posted by Brad Hall