Forged metal grey, industrial and unyielding.
Steel is a neutral grey.
It can be described as neutral, medium and colorless.
Set in black, because black reads best on it.
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to its high elastic modulus, yield strength, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures, in bridges, infrastructure, tools, ships, trains, cars, bicycles, machines, electrical appliances, furniture, and weapons.
Read on WikipediaSteel blue is a shade of blue color that resembles blue steel, i.e., steel which has been subjected to bluing for protection from rust. It is one of the less vibrant shades of blue, and is usually identified as a blue-gray color. An archaic term for it is chalybeous.
Read on WikipediaProper noun
Proper noun