Q. 1. What colors are used during the Catholic liturgy?
A. 1. The Catholic Church uses different colors for different seasons and occasions during the Liturgical year.
White (or Silver) represents light, innocence, purity, joy, triumph, and glory:
• Season of Christmas,
• Season of Easter,
• Feasts of the Lord, other than of His passion,
• Feasts of Mary, the angels, and saints who were not martyrs,
• All Saints (1 November),
• Feasts of the Apostles,
• Nuptial Masses (Weddings),
• Masses for the dead (Requiem Masses) when the deceased is a baptized child who died before the age of reason.
Red represents the Passion, blood, fire, God's Love, martyrdom:
• Feasts of the Lord's passion, Blood, and Cross,
• Feasts of the martyrs,
• Palm Sunday,
Green represents the Holy Ghost, life eternal, hope:
• Ordinary Time including,
•• Time After Epiphany,
•• Time After Pentecost.
Violet represents penance, humility, melancholy:
• Season of Advent,
• Season of Lent,
• Vigils except for Ascension and Pentecost,
• Good Friday.
Black represents mourning and sorrow:
• All Souls Day,
• Masses for the dead (Requiem Masses), except for baptized children who've died before the age of reason.
Rose represents joy:
• Gaudete Sunday (Third Sunday of Advent),
• Laetare Sunday (Fourth Sunday of Lent).
[Source: Yahoo Answers]