Isabelline (/ɪzəbɛlɪn/; also known as Isabella) is a pale grayish-yellow, pale reddish, pale creamy brown, or parchment color. It is found primarily in the coat coloration of animals, particularly in the plumage color of birds and, in Europe, horses. Historically it has also been applied to fashion. The earliest known record of the word dates back to the 1600s as “isabelle color”; this usage later became interchangeable with “Isabelline” in literature after the latter was introduced in print in 1859. The origin of the word is unclear; The uncertainty this has caused has led to several attempts to provide an etymology and has given rise to an important legend.