Colour is widely considered to have three attributes and
these enable the identification and classification of colour
(Gage. 1995, 2000; Itten, 1973).
For substance colour and formula colour. these attributes
vary somewhat across the literature and in practice.
However. they are generally referred to as:
Hue
Saturation
Tone
For spectral profile colour. these attributes are generally
referred to as:
Hue
Saturation
Luminance
Select at least one attribute of colour. Discuss how it
is relevant (or irrelevant) to one of the following topics:
Prehistory
Middle Ages