I don't see that this is really a literary question. Dark light would most usually refer to some wavelength that the human eye does not see, particularly the ultraviolet.
The literary term that fits this definition is "oxymoron," which refers to a figure of speech that combines contradictory or opposing ideas (such as dark and light) to create a specific effect or meaning.
As a commodified,synthetic site of dead and artocity, the museums fits the definition of a dark tourism site as established by lead academics.
dark blue/light blue/light green/rosey pink
Black Hole
black brown dark red or blue or whatever you thinks fits you
Yes, it fits the definition
Para
Yes, Panama fits the definition of an isthmus.
One word that fits this definition is mist.
Para is the prefix best fitting the definition of beside.
Vegetation.
A compass fits this definition.
Enumerating.