In the dull light they looked black rather than green.
Before his eyes there was nothing but dull red light.
Night had gone and a dull gray light filled the room.
Forms passed this way and that through the dull light.
To everyone's surprise it began to glow with a dull white light.
A bright, nearly full moon cast a dull white light over everything.
A dull blue light was flashing on a panel in front of him.
The base of the dull red light seemed to widen a little.
Only her eyes, mossy green and large, held the dull light of concern.
The windows, too, were high, but shades let in only a dull yellow light.