The currency in Portugal is the euro, which makes it a very worry-free destination for many other Europeans to visit when it comes to money matters (it is the currency of 13 European countries, used by 315 million people).
What do the colors of the flag mean? What do the colors of the flag mean? According to custom and tradition, white signifies purity and innocence; red, hardiness and valor; and blue signifies vigilance, perseverance, and justice. Ask the Flag Expert a Question. View more flag questions.
Blue and yellow flags are predominately used to represent nations, but appear across a number of other fields, too. Several national flags involve the colors blue and yellow; the majority are made up of only these two colors, while some blue and yellow flags also contain a third, very minor color, for example in the form of a star or similar emblem.