Piping is used extensively on the
cassocks of clergy in western rite Christianity, particularly in the
Roman Catholic and
Anglican churches. Colored piping is often used on black cassocks to indicate rank. In the Roman Catholic church, cassock piping is: black for priests; purple for
chaplains of His Holiness;
amaranth red for
bishops,
protonotaries apostolic, and
Honorary Prelates; and
scarlet red for
cardinals. In the Anglican church, piping is not used universally, many clerics preferring a plain cassock of solid colour. The most common cassock piping in the Anglican church is
scarlet red piping for cathedral deans and canons, and for archdeacons; additionally, bishops may wear black cassocks with
amaranth red (usually called purple) piping. ==References==