True Black vs. Rich Black
In printing, choosing a “true” black (C=100% M=100% Y=100% K=100%) doesn’t always work so well. It’s best to choose a rich black (Cyan=75% Magenta=50% Yellow=50% Black=100%) which will look much better printed.
How do I do that?
In Adobe Photoshop:
Double Click on Your Color:
This is what a bad black looks like:

C 100%
M 100%
Y 100%
K 100%
To create a rich black, it should look like:

Fill in the blanks with:
C 75%
M 50%
Y 50%
K 100%
Click OK



