When we print full color, we use CMYK to create your image. 3 & 4-Color Grays are gray colors that are made up of a mixture of Cyan, Magenta, Yellow & Black (CMYK). There can tend to be different colored hues mixed in with the gray color when using CMYK.
For clean gray colors, we recommend having these values for CMYK:
- Cyan - 0%
- Magenta - 0%
- Yellow - 0%
- Black - 10 - 90% (Depending on how light or dark of a gray needed)