Orvis Sports Company
In pattern GRGKGKGKGGGKGKGKGR.
This was sourced from register-of-tartans. It is a 18 stripes tartan.
Original link https://www.tartanregister.gov.uk/tartanDetails.aspx?ref=3268
Thread count
DG/4 DR4 DG60 K4 DG4 K1 LT2 K1 DG4 LT36 DG4 K1 LT2 K1 DG4 K4 DG60 DR/4

Palette
Each colour and its ΔE from the base-6 reference it is a variant of.
| Colour | Shade | Base | ΔE (OKLab) |
|---|---|---|---|
| DG | #003820 #003820 | G #006400 | 0.16 |
| DR | #880000 #880000 | R #C80000 | 0.14 |
| K | #101010 #101010 | K #000000 | 0.17 |
| LT | #8C7038 #8C7038 | G #006400 | 0.18 |
ID: /setts/s18/g4r4g60k4g4k1ga2k1g4ga36g4k1ga2k1g4k4g60r4-g003820-ga8c7038-k101010-r880000/