MacLeod
In pattern KRKRKRKRKRKRKRKRKRKRK.
This was sourced from register-of-tartans. It is a 21 stripes tartan.
Original link https://www.tartanregister.gov.uk/tartanDetails.aspx?ref=2626
Thread count
K/4 R8 K12 R32 K48 R64 K12 R12 K48 R64 K2 R4 K6 R2 K2 R12 K48 R12 K2 R4 K/6

Palette
Each colour and its ΔE from the base-6 reference it is a variant of.
| Colour | Shade | Base | ΔE (OKLab) |
|---|---|---|---|
| K | #101010 #101010 | K #000000 | 0.17 |
| R | #DC0000 #DC0000 | R #C80000 | 0.04 |
ID: /setts/s21/k4r8k12r32k48r64k12r12k48r64k2r4k6r2k2r12k48r12k2r4k6-k101010-rdc0000/