Blackness is a synonym of sableness.
As nouns the difference between blackness and sableness
is that blackness
is (uncountable) the state, property or quality of being black while sableness
is the quality or state of being.
(uncountable) The state, property or quality of being black.
(countable) The result or product of being black.
- The blackness of outerspace comes from the lack of anything to reflect light rather than the absence of black.
The quality or state of being