Northumberland
In pattern KWK.
This was sourced from register-of-tartans. It is a 3 stripes tartan.
Original link https://www.tartanregister.gov.uk/tartanDetails.aspx?ref=3162
Thread count
K/10 W10 K/10

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 |
| W | #F8F8F8 #F8F8F8 | W #F4F4F0 | 0.01 |
Sample pattern

ID: /setts/s3/k10w10k10-k101010-wf8f8f8/