In addition to the racism, UEFA also charged Barca over their supporters lighting fireworks and causing damage at the Parc des Princes.
The Spanish club will have to pay a fine of 32,000 euros (£27,000).
Barca won 3-2 in Paris but lost Tuesday’s reverse fixture 4-1 at home to go out of the Champions League.
In addition to the fine Barcelona have been banned from selling away tickets to their supporters for their next match in a UEFA competition as punishment for the racist behaviour, although the ban is suspended for a probationary period of one year.
Barcelona must also make contact with Paris St-Germain, who will meet Borussia Dortmund in the Champions League semi-finals, within 30 days to settle the damage caused by supporters in the stadium.
