User Guide

708
• CMYK. On printed material,
combining the four inks cyan (C),
magenta (M), yellow (Y), and black (K)
in different intensities represents the
colors in the visible spectrum. In theory,
adding the primary colors cyan,
magenta, and yellow together produces
black, and subtracting them leaves
white. However, because all printing
inks contain some impurities,
combining these three inks actually
produces a muddy brown. Black ink is
used to produce a true black.
Subtractive color (CMYK)
Yellow
Red
Magenta
Green
Cyan
Blue