Metallic grey, like the finish on a rifle in a storage rack.
Armoury is a neutral grey.
It can be described as neutral, medium and colorless.
Set in white, because white reads best on it.
The Armoury, also known as the Old Fortified House, is a historic building in Siġġiewi, Malta, which was originally used as the residence of captain of the village, and it also served as an arsenal where the weapons of the local militia were stored. The last Grand Master of Malta was hosted in the building by the captain during the feast of the village.
Read on WikipediaAn arsenal is a place where arms and ammunition are made, maintained and repaired, stored, or issued, in any combination, whether privately or publicly owned. Arsenal and armoury or armory are mostly regarded as synonyms, although subtle differences in usage exist.
Read on WikipediaNoun