In heraldry, argent is the tincture of silver, and belongs to the class of light tinctures, called "metals". It is very frequently depicted as white and usually considered interchangeable with it. In engravings and line drawings, regions to be tinctured argent are either left blank, or may be indicated with the abbreviation ar. in them.
The name derives from Latin argentum, which derives from the Greek 'Αργυρος, translated as silver or white metal. The word argent had the same meaning in Old French blazon, from which it passed into the English language.
In some historical depictions of coats of arms, a kind of silver leaf was applied to those parts of the device that were argent. Over time, the silver content of these depictions has tarnished and darkened. As a result, it can sometimes be difficult to distinguish regions that were intended as argent from those that were sable. The result is a false impression that the rule of tincture has been violated in cases where the argent was applied next to a dark colour, and where it now appears to be sable next to a dark colour from tarnishing.
White does seem to be regarded as a different tincture from argent in Portuguese heraldry, as evidenced by the arms of municipal de Santiago do Cacém in Portugal, in which the white of the fallen Moor's clothing and the knight's horse is distinguished from the argent of the distant castle, and in the arms of the Logistical and Administrative Command of the Portuguese Air Force.
Argent is said to represent the following: