Last week, the Phelps-Hatheway staff had the privilege of learning about the original Réveillon wallpapers through a fascinating color analysis conducted by scientist Erin Mysak.
Erin employs a range of advanced technologies to study colorants, including Fourier transform infrared spectromicroscopy, scanning electron microscopy, visible and UV reflectance optical microscopy, as well as Raman and fiber optic reflectance spectroscopy. Portions of the wallpaper were examined on site, while a few carefully selected samples were taken to her lab for more detailed analysis.
She identified the following repeating colorants in the wallpapers:
- Prussian Blue
- Hematite (red ochre)
- Goethite (yellow ochre)
- Insect-based organic red colorant
- Brochantite (a copper-based green)
- Vermilion
- Bone Black
- Calcite
- And other minor components
One of the most striking findings was that the wallpaper backgrounds were originally a vivid blue—a mixture of Prussian Blue and calcite. Like the reds and yellows, this blue has significantly faded over time. Additionally, Erin confirmed the presence of an off-white overpaint that was applied to all the papers at some point in their history.
This analysis reveals that each wallpaper features a remarkably complex color palette, much of which is only visible today in the most protected areas.
The Phelps-Hatheway wallpaper project continues to provide exciting insights into the materials, craftsmanship, and historical context of its production.
