How is the deep coloration on the male Orchard Oriole often described when compared to true jet black?

Answer

Maroon or purplish-black

The male Orchard Oriole presents a richer, deeper palette leaning toward maroon or purplish-black rather than true jet black for its dark hood and back areas.

How is the deep coloration on the male Orchard Oriole often described when compared to true jet black?
birdidentificationorioleOrchard Oriolehooded oriole