It is interesting to observe that the color of the passport of a nation is not arbitrarily selected but has some deep significance.All over the world, thedifferent   shades of the national passports are derived from the primary colors namely Red,Green, Blue or Black. The variation in the colors of the different national passports comes from the different hues of these main colors.

Geography,religion and politicalstatus are few of the deciding factors for the selection of a particular colorof its national passport.The passport books for countries within the European Union (EU) tend to be burgundy for its past communist history, while those from Caricom (Caribbean Community and Common Market) states use blue assymbolic of the New World for countries in North America, South America and Oceania.

The Islam following countries like Morocco, Pakistan and Saudi Arabia have chosen green as primary colorof their passport because of the importance of green color in Islam.

Uniquely different color of national passport is also selected by a country if it is eager to project its unique status and identity like Switzerland and Singapore that have bright red and bright orange/reddish passportrespectively.

In some cases the culture, history and political aspirations are not only the deciding factors but also practicality and availability of color can also be the determining factor.The US jacket has seen several changes in colour, from red and green and now blue.