Tile from a Tadelakt color chart
A day after hitting Rachel, what should I come across but "Isabella-coloured clothes." Back to the Oxford English Dictionary: "Greyish yellow; light buff," with a first citation to an inventory of Queen Elizabeth's wardrobe in 1600. The word is now used mostly of dogs and horses, but the sample shown here is one tile in a chart by Tadelakt, a company that sells waterproof plaster. For an article on canine genetics that includes pictures of Isabella-colored dogs, click here. For the Wikipedia article on Isabella/Isabelline, click here. How to use it in fiction? Maybe as in-joke, a pair of cats named Rachel and Isabella.