4 A DICTIONARY OF COLOUR
This work also serves as an observer of the way colourwords are used in syntax.
Writers always need ideas and refreshment and it is hoped that this Dictionary
might help to provide that elusive spark of inspiration vital to keep the creative
process going, particularly for those writing on subjects such as art, design,
fashion, furnishings, make-up or gardening. Finding the precise colour adjective
where there are so many nuances, might be made easier by referring to the list
in Appendix three.
Colour is involved in everything we do during our working hours and even
invades our dreams. But what is colour? There have been many theories over
the centuries as to the exact nature of colour but none of them is adequate to
explain all aspects of what colour is. The position is further complicated by the
fact that the dynamics of surface colour are very different from those principles
governing coloured light.
Colour is the sensation resulting from the light of different wavelengths reaching
our eyes. The colour of any object is determined by the extent of the absorption
of photons by its atoms. A black object absorbs nearly all the light directed onto
it whereas a white object reflects most of that light. A coloured object reacts
selectively to light energy – it absorbs protons of some wavelengths and reflects
others. An object which is green in colour, for example, will absorb photons from
the red to yellow range of the spectrum and reflect (thus enabling us to detect
them) photons on the green to violet range. The selection process will depend
on the particular pigments contained in that object. Caretonoids, for example,
reflect long wavelengths and absorb short wavelengths, so as to produce an orange
or pinkish colour. Haemoglobin produces red. Anthocyanin produces the colour
of rhubarb and beetroot. Dyes and paints are based on this idea. Some dyes form
a new compound with the molecules of the subject matter they are being used
to colour.
It is my intention that this work with its panoply of colourwords will provide both
an instructive and an entertaining opportunity to appreciate the richness of colour
and its many diverse applications through the ages and across the disciplines.
The study of colour and colour theory involves reference to many fields of study.
A thorough investigation of the subject will involve an understanding of physics
and chemistry, biology, medicine, the art of healing, computer sciences,
mathematics, psychology, physiology, philosophy, literature, art; the history of
art, aesthetics, heraldry, lexicography and language. This short work refers in
some measure to each of these disciplines and many more, but concentrates on
the last of them in celebration of our magnificent language.