The Wilson colour chart

"The need for standardized colour terms for horticultural use requires no emphasis, without them accurate description is impossible. Several colour charts have been published abroad, most of which are now unobtainable, thus it is fortunate that the establishment of the British Colour Council has now made it possible to publish an English chart, which will be accurate and authoritative; more accurate than its predecessors owing to recent advance in the art of colour printing, and authoritative because both the colours and their names are in accordance with the standards accepted by makers and users of colour in the British Empire and in many foreign countries. There will be thus but one colour name recognized for each hue in the textile and all colour-using industries as well as artists' colourmen. While therefore the colours chosen and names used have been selected primarily for the purposes of horticulture, The Royal Horticultural Society colour chart will also have a use and value far outside its horticultural scope" --Volume 1, page 1.