In 1969, Brent Berlin and Paul Kay published Basic Colour Terms: Their Universality and Evolution. They argued that there are “a limited number of universal basic color terms which begin to be used by individual cultures in a relatively fixed order”.
They present these as:
(white black) red (green yellow) blue brown (purple pink orange grey/gray).
(There are differences between languages and cultures (mostly involving green and blue, and light blue and dark blue), but I’ll accept that list at face value.)
The website of Lancaster University’s University Centre for Computer Corpus Research of Language (UCREL) contains lists of word frequencies in English.* Its frequency list of adjectives shows that the frequency of usage of colours is in the order
black white red green blue grey brown yellow pink orange purple
(and no others with a frequency of more than 10 per million words).
The two lists are obviously very similar: brown and yellow are the only two colours out of order. The two lists don’t have to match up, because they measure different things, but it’s fairly logical that a basic term in any semantic field will be used more than a non-basic term, and that words which are used more often will be regarded as basic.
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