Gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally on Earth as a result of sedimentary and erosive geological processes; it is also produced in large quantities commercially as crushed stone.
Read on WikipediaCrushed rock, the color of a driveway or a path unwinding.
Gravel is a neutral grey.
It can be described as neutral, medium and colorless.
Set in white, because white reads best on it.
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally on Earth as a result of sedimentary and erosive geological processes; it is also produced in large quantities commercially as crushed stone.
Read on WikipediaProper noun