In its shadow the lake was perfectly black, and he could get quickly out of pistol range.

The night sky on that planet was perfectly black.

The night sky between the stars is perfectly black.

They were not the more realistic perfectly black bodies later considered by Planck.

Above it the sky with its few small stars was perfectly black.

Look at the river - it is perfectly black.

His short hair was perfectly black with a broad white streak in front.

No, the suit at the funeral had been perfectly black.

The night was perfectly black when they reached the wine shop of old man Jules.

On the other hand, a perfectly black interface is not found in nature.