According to the Scottish Tartans Authority, Tartan # (ITI) 5582 was ...

The Assembly passed a bill Wednesday night (5th March) that would create an official state tartan, a pattern of criss-crossed horizontal and vertical bands of muted blue, scarlet, gray, black, dark green, dark yellow, black, and brown. " The bill was 'signed into law' by Governor Jim Doyle on 7th April 2008.
Go to the Tartan Ferret and enter 5882 in the Tartan No. field.