(as) black as (one's) hat

dated Completely black; totally without light or color. The basement gives me the creeps, it's as black as my hat down there!

Name	Pronounced	Usage
Vince	[vins]
Castle	['ka:sl]
Louiza	-	Greek
Amalia	ah-MAH-lee-ah (Dutch, German)	Spanish, Italian, Romanian, Dutch, German, Ancient Germanic (Latinized)
Pola	-	Polish
Ademar	-	Portuguese