Smithsonian
In pattern BYRGRYKGWBWGKYRGRYBG.
This was sourced from register-of-tartans. It is a 20 stripes tartan.
Original link https://www.tartanregister.gov.uk/tartanDetails.aspx?ref=3825
Thread count
DB/48 Y2 R4 N4 R4 Y2 K48 N48 LN4 DB4 LN4 N48 K48 Y2 R4 N4 R4 Y2 DB48 N/4

Palette
Each colour and its ΔE from the base-6 reference it is a variant of.
| Colour | Shade | Base | ΔE (OKLab) |
|---|---|---|---|
| DB | #202060 #202060 | B #2C4084 | 0.11 |
| DBa | #2C2C80 #2C2C80 | B #2C4084 | 0.05 |
| DG | #003820 #003820 | G #006400 | 0.16 |
| K | #101010 #101010 | K #000000 | 0.17 |
| LG | #789484 #789484 | G #006400 | 0.23 |
| LN | #E0E0E0 #E0E0E0 | W #F4F4F0 | 0.06 |
| N | #406054 #406054 | G #006400 | 0.11 |
| R | #C80000 #C80000 | R #C80000 | 0.00 |
| Y | #E8C000 #E8C000 | Y #E8C000 | 0.00 |
ID: /setts/s20/b48y2r4g4r4y2k48g48w4b4w4g48k48y2r4g4r4y2b48g4-b202060-g406054-k101010-rc80000-we0e0e0-ye8c000/