Robertson 4
In pattern BRBRGRBRGRGRBRBRGRBRGRGRGRGR.
This was sourced from weddslist. It is a 28 stripes tartan.
Original link http://www.weddslist.com/cgi-bin/tartans/pg.pl?source=sts
Thread count
B/6 R6 B48 R6 G48 R6 B6 R56 G4 R10 G4 R56 B6 R6 B48 R6 G48 R6 B6 R56 G4 R10 G4 R56 G4 R10 G4 R/56

Palette
Each colour and its ΔE from the base-6 reference it is a variant of.
| Colour | Shade | Base | ΔE (OKLab) |
|---|---|---|---|
| B | #304080 #304080 | B #2C4084 | 0.01 |
| G | #008000 #008000 | G #006400 | 0.09 |
| R | #C00000 #C00000 | R #C80000 | 0.02 |
ID: /setts/s28/b6r6b48r6g48r6b6r56g4r10g4r56b6r6b48r6g48r6b6r56g4r10g4r56g4r10g4r56-b304080-g008000-rc00000/