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colours,
terms and variations
Hue:
The attribute of colour which enables an observer to classify
it as red, blue, yellow etc. Each colour has a different wavelength
and frequency. Infra red has the longest wavelength and lowest
frequency. Ultra violet light has the shortest wavelength and
highest frequency. In between are all the colours of the rainbow.
At quantum level, light exhibits paradoxically both a wave function and
a particle form [photons] depending on the experimental conditions set
by an observer. Because of this we can theorise about packets of
energy being intrinsic to photons.
The energy of a particular colour is directly proportional to its frequency.
Low frequency infra red is low energy light and high frequency ultra violet
is high energy light. High energy ultra violet [UV ray] is well known
by sun bathers as potentially dangerous light. On the other hand birds
of prey use it for stalking their quarry the victims urine leaves
a trail which is visible courtesy of the bird eye UV receptors. The term
eagle eyes is well founded!
Tint: A Hue with white added
Shade: A Hue with black added
Tone: A Hue with grey added
Complementary colours: Colours
opposite each other on the colour wheel [a way of representing
the entire colour spectrum in circular format which if
spun rapidly appears white. [White contains all colour
potentialities. Black is the absence of colour.]
Using complementary colours in your environment gives a balance of the
three primary pigments red, blue and yellow.
Red complements green [yellow + blue]
Yellow complements violet [red + blue]
Blue complements orange [red + yellow]
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