According to a football article in the Guardian newspaper -
"The Italian national team wear blue because it is the colour of
Savoia, the ruling house of Italy from 1861 to 1946. Until the end of
the second world war, the Italian flag always had the Savoy coat of
arms in the centre, and it was only after the family were overthrown,
and the Italian Republic established in 1946, that the plain tricolor
was adopted as the national flag."
http://football.guardian.co.uk/News_Story/0,1563,342538,00.html
The answer also appears on these sites-
"The (light) blue is the color of Savoia. It was used for the previous
President's flag (blue with the coat-of-arms of the Republic in
gold)."
"That blue colour is the livery colour of the House of Savoy, and
therefore for the Kings of Italy 1861-1946."
http://flagspot.net/flags/it@.html
Blue was the colour of the old Italian Royal Family, The House of Savoy"
http://www.manutdzone.com/funstuff/generalfootballquiz.htm
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answerfinder
italy "national colours" "blue shirts"
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"Savoy " blue football
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