inky
Definitions
Resembling ink in color; very dark or black.
Stained or covered with ink.
Relating to or characteristic of ink.
Examples
The cat had soft, inky black fur that seemed to absorb the dim light of the room.
She dipped her quill into the inky depths of the glass bottle to begin her letter.
The night sky was an inky expanse, dotted only by the faint glimmer of distant stars.