The Anderson Tartan is unique among
all of the Scottish tartans, because it is the only tartan to
have seven colors. All other tartans have six or less. Because
of this,
the
Anderson tartan
must be woven on a special loom. The colors are primarily a rich
blue with yellow, green and red in the plaid.
The Royal Canadian Air Force tartan, which has only five colors,
is an officially registered variant of the Clan Anderson tartan.