The basic colour palette:
The two metals are silver and gold
(white and yellow)
The colours are red, blue, black, green,
purple and sky blue.
Three stains are also used at times -
Murrey, Sanguine and Tennee
(which has the same root as "tawny" and strictly applies to
an orangy brown colour, although sometimes the actual shade
used may be more orange or brown depending upon the object
Other colours can be
found occasionally in heraldry, most often to make a more
realistic image. For example brown is sometimes used for the
trunk of a tree, purple for grapes etc. When a charge is
coloured in such a naturalistic way, it is termed "proper".
The colours are represented by different
patterns of hatching when shown in black and white. The
hatchings are often carved into stone representations of arms.