Oki 8c Plus - Manual (Page 12)

12 OKIPAGE 8c Plus
Although colour has its obvious benefits, it has also created a
whole new set of problems that need to be dealt with:
• It is important not to go overboard and add dashes of
colour without thought as this will undoubtedly have a
negative effect on the whole purpose of using colour.
• Using colours which are considered garish will also affect
the way in which your document or presentation is
perceived.
• The proximity of colours is also an important factor and it
is best to consider the result when certain colours are
paired.
To minimize any problems it is important to use colour with pre-
planning and a great deal of care. If specific colours are of
paramount importance (such as those in a company logo) then it
is best to print these colours beforehand and note the composition
that gives the closest match to the required colour. Then use the
component amounts regardless of what is displayed on the
monitor.
Specifying colour
There are many different ways to specify colour and there are
many different models to cater for this. The colour wheel as
already shown, is a two-dimensional view of the HSL model
which is based on Hue, Saturation and Lightness as components
for specifying colour. The third dimension in this case is lightness
and describes the tendency towards black or white.
Commonly used models are:
• HSL • HSB
• CMY(K) • RGB
• CIE, CIELab, CIELuv • YCC
HUE
SATURATION
LIGHTNESS