Liturgical colors are specific colors used for vestments and hangings in Christian liturgy to signify different seasons, feasts, and moods within the liturgical year. The primary colors include white, red, green, purple (or violet), black, and sometimes gold, rose, blue, or other hues, each carrying symbolic meaning. These colors help underscore the spiritual themes of the day, such as penitence, joy, sacrifice, or celebration.

White symbolizes purity, holiness, and joy, and is used during Christmas and Easter seasons, feasts of the Lord (except those of His Passion), Marian feasts, celebrations of non-martyred saints, and weddings. Gold or silver may be used as alternatives to white for more solemn occasions, particularly in the United States. Red represents the blood of martyrs, the fire of the Holy Spirit, and the sacrifice of Christ, and is worn on Palm Sunday, Good Friday, Pentecost, and feasts of martyrs, apostles, and evangelists. Green signifies life, hope, and growth, and is used during Ordinary Time, which spans the periods after Epiphany and after Pentecost.
Purple (or violet) is associated with penitence, preparation, and royalty, and is used during Advent and Lent, as well as for Masses for the Dead. In some traditions, dark blue or royal blue is used for Advent instead of purple. Black is traditionally used for funerals, memorials, and weekdays during Lent and Holy Week, especially in Slavic traditions. Rose is used on Gaudete Sunday (Third Sunday of Advent) and Laetare Sunday (Fourth Sunday of Lent), symbolizing joy amid penitence. Light blue is used in some traditions for feasts of the Theotokos (Mother of God) and the Annunciation, and occasionally for the Dormition Fast.
The use of liturgical colors varies across Christian denominations and traditions, such as Roman Catholic, Eastern Orthodox, Lutheran, Anglican, and Protestant churches, though there are broad similarities in their symbolic meanings. The current system of liturgical colors was codified in the Roman Rite following the Council of Trent in 1570, with the promulgation of the Roman Missal by Pope Pius V. Over time, additional colors like gold, rose, and blue have been permitted in specific contexts or regions, reflecting local customs and theological emphasis.