Given two overlapping colored circles with the following fill colors:
| Ink | Circle in the background | Circle in the foreground |
|---|---|---|
| Cyan | 40 % | 0 % |
| Magenta | 0 % | 0 % |
| Yellow | 0 % | 60 % |
| Black | 0 % | 0 % |
Simple logic tells us to combine the inks, so we expect the following result:
| Ink | Circle in the background | Circle in the foreground | Result |
|---|---|---|---|
| Cyan | 40 % | 0 % | 40 % |
| Magenta | 0 % | 0 % | 0 % |
| Yellow | 0 % | 60 % | 60 % |
| Black | 0 % | 0 % | 0 % |
In practice, however, the result depends on the selected overprint mode:
| Standard overprint mode (OPM 0) | Illustrator overprint mode (OPM 1) | |
|---|---|---|
|
Preview |
 |
 |
|
Resulting color in the intersection |
 C: 0 % M: 0 % Y: 60 % K: 0 % |
 C: 40 % M: 0 % Y: 60 % K: 0 % |