Both teams will wear their second kits, both home and away
Barcelona and Atletico Madrid will both wear alternate kits for each leg of their Champions League quarter-final, after a request from UEFA.
The teams meet again on Wednesday night in the Vicente Calderon, but UEFA's request means that Barcelona will play in their red and gold 'Senyera' kit, while Atletico will wear navy.
In their 2014 Champions League quarter-final, only the away team changed kits. (AP Photo/Emilio Morenatti)
Both teams have already met this season in La Liga with the teams, wearing their regular kits in both games. According to Barcelona's website, UEFA made the request "in an effort to improve visibility and clearly differentiate the teams for both referees and spectators".
It is the second time in three years the Spanish teams have met in the Champions League. In 2014, the teams also met at the quarter-final stage with Atletico advancing 2-1 on aggregate. A Koke goal in the second leg gave Atletico a 1-0 win to advance to the semi-finals.
In both legs in 2014, only the away team changed their kits. Last week's first leg was only be the second time in Champions League history that Barcelona wore their away colours at home.