The colours used in heraldry are red, blue, green, purple, and black, or, to give them their old names, gules, azure, vert, purpure, and sable; combined with the yellow of gold and the whiteness of silver. Orange was never used, probably on account of the difficulty of finding a stable pigment. It was soon found that for brilliancy of effect the use of gold or silver with a colour was preferable to that of colour with colour or metal with metal; two colours are therefore found together or superposed only under certain conditions, and the same applies to the two metals.
Fig. 3. Heraldry on the gatehouse of Kirkham priory, Yorkshire, built between 1289 and 1296.
Imitations of two furs, ermine and vair, were also used: the one of white flecked with little black tails; the other of alternating oblong patches of white and blue, square at the top and rounded at the bottom, to represent grey squirrels' skins. (See figs. [151], [152].) If vair were coloured other than white and blue, the resultant was called vairy. There is also known a black fur with silver ermine-tails.
There were never any exact rules as to the particular tint of the colour employed, that being simply a matter of taste. Thus blue may range from a full indigo almost to Cambridge-blue, and red from a bright scarlet, through vermilion, to a dull brick colour, and so on; and it is surprising to find how well quiet colours blend together.
In the formation of arms the mere combinations of colours and metals produced by vertical, horizontal, or other divisions of the shield were soon exhausted, as were quarters, checkers, etc. There accordingly grew quite naturally the further use of applied strips or bands based upon such divisions.
Party — Party-fessewise — Quarterly