black as the ace of spades vs swarthy

black as the ace of spades

• Utterly black; pitch-black. 

swarthy

• Dark-skinned; Black. 

• Tawny, dusky, dark. 

• Weathered, rough. 

• A dark grey color. 

• Evil, malicious. 

• Darker-skinned than white, but lighter-skinned than tawny; tan. 

• A swarthy person.