Holy Week

Holy week runs from Palm Sunday through Maunday Thursday and Good Friday to Holy Saturday.

Holy Week is signified with the use of the colour red in clergy vestments and church hangings.

Wikipedia:

In some traditions of Christianity, Holy Week (Latin: Hebdomada Sancta or Hebdomada Maior, lit. 'Greater Week'; Greek: Ἁγία καὶ Μεγάλη Ἑβδομάς, romanized: Hagia kai Megale Hebdomas, lit. 'Holy and Great Week') is the most sacred week in the Church year. In Eastern Rite Churches, also known as Eastern Orthodox, Holy Week occurs the week after Lazarus Saturday and starts on the evening of Palm Sunday. In the rites of the Western/Latin/Roman Church it begins with Palm Sunday and concludes on Easter Sunday. For all Christian traditions it is a moveable observance. In Eastern Rite Churches, Holy Week starts after 40 days of Lent and two transitional days, namely Saturday of Lazarus (Lazarus Saturday) and Palm Sunday. In Western Rite Churches, Holy Week falls on the last week of Lent or Sixth Lent Week.^[1][2]

Holy Week begins with the commemoration of Christ's triumphal entry into Jerusalem on Palm Sunday, climaxing with the commemoration of the Mystical or Last Supper on Holy or Maundy Thursday and the Passion of Jesus on Holy or Good Friday. Holy Week concludes with Christ's rest in death and descent into Hades on Holy or Good Saturday.

Liturgical Red