CMYK color mode is required for printing your files in full color. If your file was created in RGB color mode, then there will be a color shift when converting from RGB to CMYK.
[If you have purposely designed the files to print in Pantone Colors (PMS), then this does not apply.]
If your order is color critical, we highly recommend adding a hard copy proof to get the best visual representation prior to printing the whole job.
To avoid color shifts from RGB to CMYK, it's advisable that you create your artwork in CMYK mode from the start.
When making a new document, select CMYK color mode. This will make the colors you pick on screen, look the same way on paper when printed because printers go through a four color process which involves the colors (C)yan (M)agenta (Y)ellow (K)ey Black.
For Adobe Illustrator:
To Convert Colors to CMYK: Go to File>Document Color mode>CMYK Color
For Adobe Photoshop:
To Convert Colors to CMYK: Go to Menu > Image> Mode > CMYK color
Another way to make sure the colors are accurate:
When you open the color picker (CLUT), pick a color. If there is a yellow yield icon that pops up next to the OK button, then the color you picked is not a safe color to choose. The warning icon means that the printer is not capable of printing that exact color. Colors with a warning icon are out of gamut and will print as a similar color, which is most likely what is wanted. Colors that do not have a yellow yield icon will result in better color accuracy.
Example of Yellow Yield Icon:
If you have any questions regarding any of our tips, feel free to leave a comment. If you found it helpful, PLEASE SHARE.