Humans can perceive electromagnetic
radiation in a wavelength range
starting at about 380 nm up to about
780 nm ("visible light"). This wavelength
spectrum includes the colors from
blue-violet to green and yellow to dark
red...
It is neither trivial nor technically
possible to reproduce any image true
to these natural colors. The wide range
of colors is simply not technically
feasible. Different technologies can
only represent a certain range of the
entire color space. Such a range is
called a "color space". It is helpful to
understand the fundamental
relationships in order to better
understand the limitations of different
color spaces and the reasons for their
limitations.
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