A material study / 069
Gemini: The Linen Window
Ferrara · Cornflower, poppy & pale linen.
May’s Gemini at Palazzo Schifanoia opens an early-summer study. Meadow flowers, straw and linen set a light bedroom palette: cornflower blue and poppy red stay small against a generous pale ground.

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.
Pale Linen: 30%; Golden Hay: 15%; Cornflower: 10%; Poppy Red: 10%; Meadow Linen: 20%; Night Cotton: 15%
The source / Art history
A month above the scene.
May at Schifanoia, by Francesco del Cossa and workshop, places Gemini below Apollo. Its lower scene is fragmentary. The hay, flowers and sickle are our early-summer material selection, not a claim that an intact haymaking scene survives in this panel.
Musei Ferrara · May, Palazzo Schifanoia (1469–1470) ↗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: 2026-05-21 00:29 UTC
Next sign: 2026-06-21 08:16 UTC
Sidereal · Lahiri
–
Exact UTC ingresses
Enters: 2026-06-15 07:12 UTC
Next sign: 2026-07-16 17:57 UTC
Intervals include the entry and exclude the next boundary. Sidereal offset at ingress: 24.2266° (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
Gemini, 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 |
|---|---|---|---|
| 31Xi Gem | 2484 | 101.3225 | 12.8956 |
| 30 Gem | 2478 | 100.9971 | 13.2278 |
| 24Gam Gem | 2421 | 99.4279 | 16.3992 |
| 54Lam Gem | 2763 | 109.5233 | 16.5403 |
| 18Nu Gem | 2343 | 97.2408 | 20.2122 |
| 43Zet Gem | 2650 | 106.0271 | 20.5703 |
| 55Del Gem | 2777 | 110.0308 | 21.9822 |
| 7Eta Gem | 2216 | 93.7192 | 22.5067 |
| 13Mu Gem | 2286 | 95.74 | 22.5136 |
| 1 Gem | 2134 | 91.03 | 23.2633 |
| 77Kap Gem | 2985 | 116.1117 | 24.3981 |
| 27Eps Gem | 2473 | 100.9829 | 25.1311 |
| 69Ups Gem | 2905 | 113.9804 | 26.8958 |
| 60Iot Gem | 2821 | 111.4317 | 27.7981 |
| 78Bet Gem | 2990 | 116.3288 | 28.0261 |
| 75Sig Gem | 2973 | 115.8279 | 28.8836 |
| 46Tau Gem | 2697 | 107.785 | 30.2453 |
| 62Rho Gem | 2852 | 112.2779 | 31.7844 |
| 66Alp Gem | 2891 | 113.65 | 31.8883 |
| 66Alp Gem | 2890 | 113.65 | 31.8886 |
| 34The Gem | 2540 | 103.1971 | 33.9611 |
Tradition / Historical classification
A note on the tradition.
In the traditional classification recorded by Lunologium, Gemini is mutable air, with Mercury 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 Linen Window
May’s Gemini at Palazzo Schifanoia opens an early-summer study. Meadow flowers, straw and linen set a light bedroom palette: cornflower blue and poppy red stay small against a generous pale ground.

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.
#CDC5B9Supporting ink #171615Accent #16274DInspect application CSS
/* Sourced from Chromologium (https://chromologium.com/studies/gemini) */
/* Suggested application roles; original palette preserved separately. */
:root {
--study-surface: #CDC5B9;
--study-ink: #171615;
--study-accent: #16274D;
--study-accent-ink: #ffffff;
--study-original-1: #CDC5B9; /* Pale Linen */
--study-original-2: #996B2D; /* Golden Hay */
--study-original-3: #30409F; /* Cornflower */
--study-original-4: #A30B03; /* Poppy Red */
--study-original-5: #6D7A44; /* Meadow Linen */
--study-original-6: #16274D; /* Night Cotton */
}
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 linen-hung bedroom overlooking fields, informed by a linked historical source. The six screen colours were sampled from this study’s specimen drawer; they are not measured historical pigments.
- Musei Ferrara · May, Palazzo Schifanoia (1469–1470)
- Musei Ferrara · illustrated Hall of Months tour
- Lunologium — Tropical and sidereal zodiac
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