If the surface is light-colored one would use a carbon-based dark powder.

For medium brown hair, use a dark brown powder.

Bromopyrogallol red is a green to dark brown crystalline powder.

A dark powder on the ball, if you want to put a mark on a white surface.

Inside each one is some loose, shifting dark green powder.

He took the lid off and showed me a dark brown powder.

It is a fine black or dark brown powder.

He watched a woman sprinkle a dark powder into the waters from an upstream canoe.

He started to tip the dark powder into his filter.

It has the appearance of a dark red powder.