A material study / 074
Scorpio: The October Earth
Chantilly · Seed grain, oxblood & walnut.
October’s sowing scene in the Très Riches Heures anchors an earthy autumn palette. Grain, soil, oxblood leather and walnut turn towards an imagined library with a low fire and a quiet window.
01 / The palette
Six colors, one atmosphere.
Screen colors are authored interpretations. Material photographs show surface character; they are not calibrated color samples.
02 / Play with the composition
Give the ground room, then place the accent.
Adjust the six colour areas in a screen composition. The illustrated room keeps its original materials and light.
Palette proportions / Total 100%
Starting points
An editable screen composition; the room remains a fixed imagined reference.
Cream Linen: 30%; Seed Grain: 15%; Oxblood Leather: 10%; Black Walnut: 10%; River Stone: 20%; Tobacco Wool: 15%
The source / Art history
A month above the scene.
The October miniature was begun by the Limbourg brothers in 1411–1416 and completed by Barthélemy d’Eyck around 1446. Sowing takes place before the Louvre, beneath an arc from Libra to Scorpio. Soil and seed grain connect our drawer to that scene; leather, walnut and the imagined library are contemporary additions, not a reconstruction of a manuscript interior.
Château de Chantilly · October, folio 10 verso ↗Read the holding institution’s record. No museum photograph or manuscript scan is reproduced here.
The calendar / Computed
The dates, in two frames.
Tropical
–
Exact UTC ingresses
Enters: 2026-10-23 09:30 UTC
Next sign: 2026-11-22 07:15 UTC
Sidereal · Lahiri
–
Exact UTC ingresses
Enters: 2026-11-16 14:01 UTC
Next sign: 2026-12-16 04:43 UTC
Intervals include the entry and exclude the next boundary. Sidereal offset at ingress: 24.2325° (Lahiri). Sign transitions are refined to one minute. Refinement is computational resolution, not a claim of observational accuracy. Local calendar dates may differ from UTC.
Calculation source and version
Lunologium source revision 4d4d8ecc · astronomy-engine 2.1.19. Generated reference for 2026–2028; year labels identify the year of entry, so a Capricorn interval continues into the next January.
Take away / A constellation card
Scorpio, point by point.
This chart uses numerical star data supplied by HEASARC, a service of the Astrophysics Science Division at NASA/GSFC. Hoffleit & Warren, Bright Star Catalogue (1991) · Data-use terms.
North up, east left. Relative visual magnitude controls dot size. Positions use J2000.0 and a local projection with a cosine correction. The connecting lines were authored for this card; constellation boundaries and the Sun’s current position are not drawn. Print on A4 or Letter in portrait orientation.
Read the star coordinates
| Star | HR | Right ascension | Declination |
|---|---|---|---|
| Eta Sco | 6380 | 258.0383 | -43.2392 |
| The Sco | 6553 | 264.33 | -42.9978 |
| Zet2Sco | 6271 | 253.6458 | -42.3614 |
| Iot1Sco | 6615 | 266.8962 | -40.1269 |
| Kap Sco | 6580 | 265.6221 | -39.03 |
| Mu 1Sco | 6247 | 252.9675 | -38.0475 |
| Mu 2Sco | 6252 | 253.0838 | -38.0175 |
| 34Ups Sco | 6508 | 262.6908 | -37.2958 |
| 35Lam Sco | 6527 | 263.4021 | -37.1039 |
| 26Eps Sco | 6241 | 252.5408 | -34.2933 |
| 5Rho Sco | 5928 | 239.2213 | -29.2142 |
| 23Tau Sco | 6165 | 248.9708 | -28.2161 |
| 21Alp Sco | 6134 | 247.3517 | -26.4319 |
| 6Pi Sco | 5944 | 239.7129 | -26.1142 |
| 20Sig Sco | 6084 | 245.2971 | -25.5928 |
| 7Del Sco | 5953 | 240.0833 | -22.6217 |
| 10Ome2Sco | 5997 | 241.8513 | -20.8686 |
| 9Ome1Sco | 5993 | 241.7017 | -20.6692 |
| 8Bet1Sco | 5984 | 241.3592 | -19.8056 |
| 14Nu Sco | 6027 | 242.9987 | -19.4606 |
Tradition / Historical classification
A note on the tradition.
In the traditional classification recorded by Lunologium, Scorpio is fixed water, with Mars as its traditional ruler. These are cultural categories, separate from the computed solar position and the colours sampled for this study.
03 / Translate
From a room to an interface.
The interface
Objects, rooms & materials
The October Earth
October’s sowing scene in the Très Riches Heures anchors an earthy autumn palette. Grain, soil, oxblood leather and walnut turn towards an imagined library with a low fire and a quiet window.
The same palette. Different roles.
Use this palette.
A suggested interface use of the study’s paper and accent. Supporting ink is added for legibility; original palette values stay intact.
#D9CAB9Supporting ink #171615Accent #4E1E12Inspect application CSS
/* Sourced from Chromologium (https://chromologium.com/studies/scorpio) */
/* Suggested application roles; original palette preserved separately. */
:root {
--study-surface: #D9CAB9;
--study-ink: #171615;
--study-accent: #4E1E12;
--study-accent-ink: #ffffff;
--study-original-1: #D9CAB9; /* Cream Linen */
--study-original-2: #C68C49; /* Seed Grain */
--study-original-3: #4E1E12; /* Oxblood Leather */
--study-original-4: #4B2E23; /* Black Walnut */
--study-original-5: #46433E; /* River Stone */
--study-original-6: #4D331F; /* Tobacco Wool */
}
Follow the material further.
Materials
The ingredients.
An imagined setting.
A contemporary interpretation,
with references kept beside the study.
Take away
Take the study with you.
Download swatches
Sources & interpretation
A contemporary material tray and imagined dark walnut library by a low fire, informed by a linked historical source. The six screen colours were sampled from this study’s specimen drawer; they are not measured historical pigments.
The palette follows the authored material references in this collection. Room, object and material imagery were created for this study. These are imagined settings, with no affiliation to the fictional interface brands.
The controls explore screen composition, not physical pigment recipes or material measurements. Image rights · Image permissions