] I can guess at a few of the colours
.....] Capuchine - brown like the monkey rather than brown like a capucino coffee which I don't think existed?

Both wildly unlikely

Isn't it wierd how you can never have noticed a something before and then it pops up twice? In a bid to read as much as I can of the stuff that JA read I was sitting in bed reading "Amelia", by Fielding this morning, when suddenly, on page 142 of volume 2, Amelia, about to be whisked away to a rout is told by Mrs. James to:

"Come, take your capuchine; you positively shall go."

Got this from Websters *(thanks, Frank)

Capuccio
(||Ca*puc"cio) n. [It. cappucio. See Capoch.] A capoch or hood. [Obs.] Spenser.

Capuched
(Ca*puched") a. [See Capoch.] Cover with, or as with, a hood. [Obs.] Sir T. Browne.

Capuchin
(Cap`u*chin") n. [F. capucin a monk who wears a cowl, fr. It. cappuccio hood. See Capoch.]

1. (Eccl.) A Franciscan monk of the austere branch established in 1526 by Matteo di Baschi, distinguished by wearing the long pointed cowl or capoch of St. Francis.

A bare-footed and long-bearded capuchin.
Sir W. Scott.

2. A garment for women, consisting of a cloak and hood, resembling, or supposed to resemble, that of capuchin monks

So since I assume Mrs. James was not suggesting Amelia grab a shoeless, unshaven cleric to take to the rout I can only assume it was an earlier spelling of the hooded thing.

But what colour is it? Still a complete mystery to me!

Flash of inspiration! Perhaps Capuchine monkeys are so named because they have white faces and appear to be wearing a capuchine?