Pep Guardiola's side were awarded 'home team' status at the Stadio Olimpico and will sport their traditional home strip of maroon and blue stripes.
While Sir Alex Ferguson's charges have elected to wear their third-choice strip, meaning they will strongly resemble the Catalans' fierce rivals Real Madrid.
United wore white when they beat Barcelona 2-1 in the 1991 Cup Winners' Cup final in Rotterdam.
It was also the Red Devils' colour of choice in the first leg of the sides' Champions League semi-final clash 12 months ago.
And they, again, appeared in white attire in both group stage games against Barca in the 1999 Champions League.
Both ties famously ended 3-3, with the Old Trafford outfit going on to win the trophy, beating Bayern Munich in the final at Barcelona's Nou Camp stadium.
NEWS: Rijkaard: United have got no chance
UNITED FANS! Check FourFourTwo.com’s ever-expandinginterviews archivefor more stuff to read:
Web Exclusives Wayne Rooney, Peter Schmeichel, Carlos Tevez
Q&A Wayne Rooney, Cristiano Ronaldo, Ruud Van Nistlerooy
One on One David Beckham, George Best
Ask A Silly Question Bryan Robson
Boy's A Bit Special Danny Simpson
Perfect XI Garth Crooks, Bryan Robson, Sir Bobby Charlton, Eric Cantona
What Happened Next? David May, Norman Whiteside
Sing When You’re Winning Dominic Monaghan, Ian Brown
And Another Thing Being a Big Four fan
Plus! Rate United players (and others) onTalentspotter
BARCELONA FANS! Check FourFourTwo.com’s ever-expanding interviews section for more stuff to read:
Q&A Samuel Eto'o, Cesc Fabregas
Web Exclusives Cesc Fabregas, Gary Lineker
One on One Mark Hughes, Thierry Henry, Ronaldo
Perfect XI Gheorghe Hagi, Hristo Stoichkov, Ronald Koeman
Plus! Rate Barca players (and others) on Talentspotter
