The term 'Heraldic Colour' is a term used to describe the colours used in heraldry, which is the practice of creating coats of arms and other symbols to represent families, organizations, and other entities. The crossword solution for this term is 'TINCTURE', which is an eight-letter word that refers to the use of colour in heraldry. Tinctures are divided into two categories: metals (gold and silver) and colours (red, blue, green, black, and purple).