The four main devices (symbols) in the Mackey blazon are the bear, dagger, roebuck and civic crown. The two main tinctures (colors) are azure and or.
Azure is the heraldic colour blue, usually quite a deep, dark shade of the colour (there is a lighter blue that sometimes occurs, known as celestial azure). If colour printing is not available then it can be represented by closely spaced horizontal lines in a scheme known as “hatching” 1Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 26. The word is thought to originate from the Arabic lazura and it represents the colour of the eastern sky. It is also said to be the colour associated by the Catholic Church with the Virgin Mary and hence of particular significance 2The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P150.
The bright yellow colour frequently found in coats of arms is known to heralds as Or, or sometimes simply as Gold.3Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 27. Along with, argent, or silver it forms the two “metals” of heraldry – one of the guidelines of heraldic design is that silver objects should not be placed upon gold fields and vice versa 4A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P85. The yellow colour is often associated with the Sun, and the zodiacal sign of Leo.5Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53.
The bear is more common in the arms of continental Europe than in British arms (possibly due to the lack of bears native to that country!), although the county of Warwickshire famously includes a bear in its arms. 6A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Bear Wade tells us that the bear is the “emblem of ferocity and the protection of kindred”. 7The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P63
The dagger, a very personal weapon occurs frequently in coats of arms, and its appearance is sometimes described in great detail. It is known by many different names, including dirk, skein and poignard. 8A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Dagger
Many different forms of the deer, hart, roe-buck and other appear in rolls of arms, though often of similar appearance. The precise choice of animal possibly being a reference to the family name. 9A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Deer If there is any symbology intended it is probably that of enjoyment of the hunt, deer in all its form being a popular prey. 10The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P30