Red is the color of the day on feast days of martyrs.
Lorenzo Ruiz was martyred on September 29, which would probably been his assigned feast day. However, since September 29 is also a major feast day (The Archangels Michael, Gabriel and Raphael) his feast was set on September 28.
Pope Benedict I is not a saint and has no feast day.
Saint Maria Goretti's Feast Day is July 6th.
If you are referring to the color of vestments worn at Mass on Saint Patrick's Day, that would be violet as the feast falls in Lent.
The feast day of saint Mark is April 25.
Saint Christopher's feast day is July 25th.
Saint Laura's Feast Day is October the 19th.
Saint Helena's feast day is August 18.
July 24 is the feast day of Saint Charbel.
August 11 is the feast day of Saint Philomena.
November 22 is the feast day of Saint Cecilia.
The 23rd of April is the feast day of Saint George.