(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
Rostislav	rahs-tee-SLAHF (Russian)	Russian, Czech, Medieval Slavic
Gjergj	-	Albanian
Isaurus	-	Late Roman
Brooklynn	BRUWK-lin	English (Modern)
Arawn	-	Welsh Mythology
Caden	KAY-dən	English (Modern)