Passports are produced in 4 colors / file photo
Passports are produced in 4 colors / file photo

Did you know that worldwide passports are produced in only 4 colors?

Your passport will be one of the colors blue, red, green and black.

Interestingly, there are no formal rules in this regard that compel the use of specific colors.

The International Civil Aviation Organization (ICAO), the body that sets standards for air travel, recommends specific typefaces, type sizes and fonts to countries for travel documents such as passports.

For the production of passports, it is mandatory to use materials that prevent slits.

Similarly, the material should be readable at different temperatures such as 14 to 122 degrees Fahrenheit while not being degraded by air humidity of 5 to 95 percent.

But ICAO has never mandated the use of specific colors for passport covers.

According to ICAO Chief Communications Officer Anthony Philbin, the choice of passport colors was not accidental.

So most countries chose darker shades of red, green and blue, so why?

This is because dark colors not only feel more official but also hide dust and wear and tear and this is the main reason for choosing them.

That is, passports should not look dirty or rotten despite the passage of time.

The color of passports is usually chosen based on geographical, political and religious reasons, such as Muslim countries often prefer green, red is common in Europe, various shades of blue are used in American countries, While black color is used by very few countries.