Blue–green distinction in language being described. For example, "blue" and "green" might be distinguished, but a single term might be used for both if the color is dark. Furthermore, green might be associated with yellow, and blue with black or gray. According to Brent Berlin and Paul Kay's 1969 study "", distinct terms for brown, purple, pink, orange and grey will not emerge in a language until the language has made a distinction between green and blue. In their account of the development of color terms the first terms to emerge are those for white/black (or light/dark), red and green/yellow. The word for blue
Isabelline (colour) of the cream gene, an incomplete dominant dilution gene that produces a horse with a gold coat and dark eyes when heterozygous, and a light cream-coloured horse with blue eyes when homozygous. A subspecies of the Himalayan brown bear ("Ursus arctos isabellinus") was named subspecifically for the colour and is also sometimes known as the isabelline bear. The description has also been used in the UK for fawn coloured Doberman dogs. Isabelline (colour) Isabelline , also known as isabella, is a pale grey-yellow, pale fawn, pale cream-brown or parchment colour. It is primarily found in animal coat colouring, particularly plumage