Pattern BGBBWGBGBGBGBRBWBRWRBRBRB

BGBBWGBGBGBGBRBWBRWRBRBRB

It is a 25 stripes tartan.

Colour Sequence

BGBBWGBGBGBGBRBWBRWRBRBRB

List of tartans with this colour sequence

Tartans
Unidentified Plaid #11