Grey as a London sky on a weekday, the color of cash and commerce.
Pound Sterling is a neutral grey.
It can be described as neutral, medium and colorless.
Set in black, because black reads best on it.
Sterling is the currency of the United Kingdom and nine of its dependent territories and formerly of the Kingdom of England. The pound is the base unit of sterling, and the word pound is also used to refer to the British currency generally, often qualified in international contexts as the British pound or pound sterling. Since 1971, each pound has been divided into 100 pence.
Read on WikipediaPound is a name of various base units of currency, and the name of some of those currencies by extension. It is used in some countries today and previously was used in many others. The English word pound derives from the Latin expression lībra pondō, 'a pound by weight', in which lībra means 'scale' or 'balance' and pondō means 'pound' or 'weight'. The currency's symbol is £, a stylised form of the blackletter L, crossed to indicate abbreviation.
Read on WikipediaNoun