Sad preacher nailed upon the coloured door of time

"So in we came, and Uranus grew in the now-familiar way, looking mauve and lavender and mother-of-pearl..." p379

"... day turns to night, by way of the most lurid sunset they have yet seen, fuchsia clouds blazing in a pale sky that is lemon over the black horizon, bending into green above that, then higher still a blue some say is called cyan blue, and over that an indigo that spreads all the way over their skylight to the east. All these intense transparent colors are there at once, and yet none of their Terran hosts are taking the slightest notice..." p417