From red to black, passports are different colours in different countries but what do they mean and who decides the colours?

From red to black, passports are different colours in different countries but what do they mean and who decides the colours?

Shutterstock Dubai: Pakistan is gearing up for a significant upgrade in its passport system with the arrival of two high-tech e-passport printers and six desktop printers from Germany. These ...

UK passports have changed colour from red to blue following Brexit ... Green passports are issued by countries including South Africa, Pakistan, Morocco, Saudi Arabia and more.