Liturgical colours are those specific colours which are used for vestments and hangings within the context of Christian liturgy. The symbolism of violet, white, green, red, gold, black, rose, and other colours may serve to underline moods appropriate to a season of the liturgical year or may highlight a special occasion. There is a distinction between the colour of the vestments worn by the clergy and their choir dress, which with a few exceptions does not change with the liturgical seasons.