RGB vs. CMYK

I have Photoshop 6 and am trying to convert my company logo over to CMYK from RGB. The problem: I have it exactly the way I want it (colors) and try to switch it over and the color green in my logo is not the color I need. I am new to Photoshop - can someone help.... I need an asnwer pretty fast.

Thanks!

Well you should always start with CMYK for printing. When you work with RGB there is a little hazard sign telling you that you are out of the gamut for printing. Your green is probably out of the gamut for printing.

http://www.adobe.com/support/techguides/color/colormodels/rgbcmy.html

Read this.. Near the bottom of the page you will see where the colours fall.

Originally posted by spighita
Well you should always start with CMYK for printing. When you work with RGB there is a little hazard sign telling you that you are out of the gamut for printing. Your green is probably out of the gamut for printing.

This is a loaded issue, and saying that one should always work in CMYK for printing should be predicated upon how one is going to print the final piece, and from which application, and what other elements are to be included along with you Photoshop image.

If you're going to almost any home inkjet printer that is not PostScript-savvy, or through a laser printer workflow that includes a dedicated RIP, you'll want to work in RGB, because conversion to CMYK happens at the software level. Then there are issues of setting up and using the proper scanner, camera, monitor and printer profiles, and learning to custom-tweak the conversions, and to be able to recognize where to compensate for differences and deficiencies.

To say that one should always work in CMYK for printing is a naive statement, because it leaves out so many varables.