So the top image I assume is your RGB version, and the bottom CMYK. You really cannot make a better CMYK match even with tweaking, as the colors are both ones that do tho have a CMYK match. For pantone you could get closer by manly choosing 2 spots from the PMS book. Make a grdient of the dark blue and have that multiply over your light blue. Choose Edit > Process Colors > Convert To CMYK or Convert To RGB (depending with the colour mode of aforementioned document). Colorize grayscale button 1-bit images. Have fun with an colors! For digital home/office printing RGB is usually the only option as most of these printers don't support printing CMYK image files. For commercial printing, ask your printer. Some print processes that require separations to be made, such as lithography or screen printing, absolutely will need CMYK for full colour work, or defined spot colours If you want to convert an image from RGB to CMYK, simply open the image in Photoshop. Then go to Image > Format > CMYK. Download and install the Adobe PDF color profile and preset from here before saving the PDF. Instructions are included with the download. After that, go to File > Save As. The graphic in Illustrator CS5.1 looks like this: When I convert te document to CMYK, I lose the transparency in the mesh gradients: If I rasterize the emoji, I lose the transparency around the edges. If I rasterize the whole image at the required 300 dpi the result looks poor: I have had this question for several years and never got around to asking it. I am very familiar with converting RGB files to CMYK in Photoshop. I expect some duller color shift when I do this to the smaller CMYK gamut. Usually it is not a major issue. With Illustrator it is different. As an exa I created the image in illustrator in CMYK mode and then saved the file as a jpeg/RGB for the purpose of printing this image onto a mug. The faint sand/shell colour came out on the mug as a buttery custard colour. How would I set up the CMYK illustrator colour to come out the way it looks on screen once printed from the RGB Jpeg file? If you want to convert RGB to CMYK in Illustrator, there are a few ways that you can do it. One way is to use the CMYK color space panel in Illustrator. This panel allows you to adjust the colors in your Illustrator file according to the CMYK color space. Another way to convert RGB to CMYK is to use the RGB to CMYK color converter in Illustrator. .

convert image rgb to cmyk illustrator