About Colors - Konica Minolta bizhub Pro C6500 User Manual

Color Adjustment
10 Color Adjustment
10.1

About Colors

RGB and CMYK Models
Have you ever wondered why the world surrounding us appears colored to
our eyes?
Light is electromagnetic waves with wavelengths between about 380 - 780
nm, also called visible rays. The wavelengths of visible rays can be separated
into the rainbow colors violet, indigo, blue, green, yellow, orange, and red,
from the shortest wavelength in order. When all the wavelengths of the visible
rays strike your eye at the same time, white color is perceived.
We see the objects in color because they reflect or transmit visible light of
different wavelengths or frequencies.
Slit
White light
The colors separated from visible light are called primary colors. Primary
colors cannot be produced from other colors. These colors, however, can be
combined to make up any other color (color mixture).
The color mixture provides two different types, three primary colors of light
and three primary colors of pigment.
The three primary colors of light are called additive color mixture, and the
more colors are added, the brighter it will be. Mixing red (R), green (G), and
blue (B) colored lights, various colors can be created.
The three primary colors of pigment are called subtractive color mixture, and
the more colors are added, the darker it will be. Various colors can be creat-
ed by mixing cyan (C), magenta (M), and yellow (Y) pigments (such as ink or
toner), however, black (K) is actually used as the fourth color in addition to
the three primary pigments.
bizhub PRO C6500
Prism
Visible rays
Light
Electromagnetic wave
10
Color
Reflection
10-3