plate no. 2703

The School of Athens (detail)

frescoHigh Renaissancehistory paintingfiguresrobesglobebeardhistoricalportrait

what to study here

It shows how warm mid-tones, soft edges and one cool blue accent can organize a figure group without relying on harsh light-dark contrast.

This detail is useful for studying how a painter holds a figure group together with warm, close-valued color rather than strong contrast. The vision read describes light from the upper left on the bearded elder and the globe-holder, with a gentle V-shaped value structure: darkest darks in the burgundy robes at left and the deep background, lightest lights in cream drapery and faces at right. Most values sit in the middle range, so the work is done by warm and cool shifts. The background stays olive and soft gold instead of dropping away, which keeps the figures in the same space. Edges are soft in flesh and drapery, and folds are described by value shifts, not dark outlines. The two blue globes are the one saturated cool note and pull the eye back after it lands on the face. The general fresco context adds that pigment is mixed with water on wet lime plaster in daily sections, and that scraped indentations in the plaster were used to deepen the eyes. Copy the value grouping and the soft fold modeling first.

key decision

Raphael kept the values close and mid-range, using warm and cool shifts to separate the lit front plane from the darker rear, instead of hard contrast or outlines. The saturated blue globes serve as the one strong cool accent.

recreation guide

The School of Athens is a monumental history painting executed in buon fresco, representing the pinnacle of Raphael’s High Renaissance style. Distinctive to this work is the rigorous planning process, where Raphael utilized extensive preparatory drawings and full-scale cartoons to manage the complex composition of numerous figures. The technique relies on the chemical fixation of pigments into wet lime plaster, ensuring durability but demanding rapid execution within the constraints of the daily plaster section, or giornata. A notable technical feature documented in this specific work is the use of a 'blind stylus' to scratch lines into the plaster, as well as the scraping of indentations into wet plaster to create depth, particularly in the eyes of the figures.

estimated time

Several weeks to months, depending on the scale of the recreation. The buon fresco technique requires working in daily sections (giornate), meaning the painting cannot be completed in a single session. Each giornata allows only 7-9 hours of active painting before the plaster dries.

materials

7 items

steps

7 in sequence

materials

item	purpose	modern equivalent
Lime plaster (calcium hydroxide)	The binding medium and surface for the fresco. It undergoes carbonatation to fix the pigment.	Hydrated lime or slaked lime mixed with sand.
Alkaline-resistant pigments	Colors that can withstand the high pH of wet lime plaster without degrading.	Earth pigments (ochres, umbers), lapis lazuli, azurite, and lead white (used with caution due to reactivity).
Water	Vehicle for mixing pigments. No organic binder is required for buon fresco.	Distilled water.
Red pigment (Sinopia)	Used for sketching the initial composition on the rough underlayer (arriccio).	Red ochre or iron oxide pigment.
Soot bag (Spolvero)	Used to transfer pricked cartoon lines onto the wet plaster via pouncing.	Charcoal powder in a pounce bag.
Blind stylus	A sharp tool used to scratch lines into wet plaster without leaving pigment, creating indentations.	A pointed metal tool or stylus.
Scraping tool	Used to scrape indentations into wet plaster to increase the illusion of depth, specifically noted for the eyes in this work.	A palette knife or specialized plaster scraper.

preparation

surface prep

The wall must first be prepared with a rough, thick undercoat of plaster known as the arriccio (Source 3). This layer is allowed to dry for several days. Once dry, the composition is sketched onto this underlayer using a red pigment called sinopia (Source 1). If painting over an existing surface, it must be roughened for adhesion (Source 1).

underdrawing

Raphael extensively used drawings to plan compositions, often creating full-size cartoons (Source 5). These cartoons were pricked with a pin and then 'pounced' with a bag of soot (spolvero) to transfer dotted lines onto the wall (Source 1, Source 5). Additionally, Raphael made unusual use of a 'blind stylus' to scratch lines into the plaster, leaving only an indentation without a visible mark; these indentations are visible in The School of Athens (Source 5).

underpainting

In buon fresco, there is no traditional underpainting layer with a binder. The pigment is mixed with water and applied directly to the wet intonaco (Source 2, Source 3). The pigment sinks into the plaster and is fixed by the chemical reaction of carbonatation (Source 2).

color palette

General Earth Tones

Ochres, umbers, siennas

General use in Raphael's palette for architectural elements and drapery shadows. These are alkaline-resistant and suitable for buon fresco.

Blues

Lapis lazuli or azurite

Likely used for the sky or specific drapery, consistent with High Renaissance practices. Note: Some blue pigments may require a secco application if not stable in wet lime, but Raphael primarily used buon fresco.

Whites/Lights

Lead white or lime white

Highlights and flesh tones. Raphael perfected sfumato modelling for subtlety in flesh (Source 4), though this is more common in oil, the principle of soft transitions applies.

composition

The composition is a complex history painting featuring numerous figures in dynamic and complex positions, influenced by Leonardo da Vinci’s pyramidal compositions and contrapposto (Source 4). Raphael’s figures often show an interplay of glances and are arranged in cohesive groups (Source 4). The work reflects a 'monumental quality' in the figures (Source 4). Specific details of the room layout or individual figure poses are not described in the provided sources, so general compositional habits are cited.

step by step

underdrawing→first pass→refining→finishing

underdrawing

step 01
Apply the rough arriccio layer to the wall and allow it to dry. Sketch the composition using sinopia (red pigment) on the arriccio.
Tip — Ensure the arriccio is fully dry before sketching to prevent smudging.
Sinopia underdrawing
step 02
Prepare full-size cartoons of the composition. Prick lines along the main contours. Hold the cartoon against the wall and pounce with a bag of soot to transfer the dotted outline.
Tip — Ensure the soot dots are visible on the arriccio or the new intonaco.
Spolvero (pouncing)
step 03
Use a blind stylus to scratch additional lines or details into the plaster. This leaves an indentation without pigment, a technique Raphael used extensively.
Tip — This is done on the wet or semi-wet plaster to create subtle guides or textures.
Blind stylus

first pass

step 04
Apply a thin, smooth layer of fine plaster (intonaco) to the section to be painted that day (the giornata). The size of the giornata depends on the complexity; a face might take a whole day.
Tip — Only apply as much plaster as can be painted within 7-9 hours.
Giornata
step 05
Begin painting within one hour of applying the intonaco. Mix alkaline-resistant pigments with water (no binder) and apply to the wet plaster.
Tip — Work quickly. The plaster dries in 10-12 hours, and painting must stop two hours before drying.
Buon fresco

refining

step 06
While the plaster is still wet, scrape indentations into specific areas, such as the eyes, to increase the illusion of depth and make them appear more pensive.
Tip — This technique is specifically noted for the eyes in The School of Athens.
Plaster scraping

finishing

step 07
Allow the giornata to dry completely. The carbonatation process will fix the pigment into the lime crust. If mistakes were made, the intonaco must be removed and redone, or corrections made a secco (on dry plaster) later.
Tip — Do not attempt to paint buon fresco on dried plaster; it will not adhere properly.
Carbonatation

critical techniques

Buon Fresco

Painting with water-mixed pigments on wet lime plaster. The pigment becomes an integral part of the wall through carbonatation. This requires speed and precision as mistakes are difficult to correct.

Giornata

Dividing the fresco into daily sections based on the amount of plaster that can be applied and painted in one day. Seams between giornate may be visible.

Blind Stylus

Scratching lines into the plaster to create indentations without visible marks. Raphael used this extensively for refining poses and details.

Plaster Scraping

Scraping wet plaster to create depth, particularly used for the eyes in The School of Athens to make them appear sunken and pensive.

common pitfalls

→Painting on plaster that is too dry: Buon fresco requires the plaster to be wet. If the plaster dries, the pigment will not fix and will flake off (Source 3).
→Working too slowly: The artist has only 7-9 hours of working time per giornata. If the plaster dries before completion, the unpainted intonaco must be removed (Source 1).
→Using non-alkaline pigments: Pigments must be resistant to the high pH of lime plaster, or they will degrade (Source 3).
→Ignoring the giornata seams: Large frescoes are done in sections. Failing to plan the giornata boundaries can lead to awkward seams or incomplete figures (Source 1, Source 3).

what the sources don't tell us

Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.

·Specific pigment recipes for The School of Athens are not provided in the sources, only general alkaline-resistant pigments.
·The exact layout of the figures and architectural details in The School of Athens is not described in the sources, so visual recreation relies on external knowledge not cited here.
·The specific role of Raphael's workshop assistants in the execution of this particular fresco is not detailed, though it is known he had a large workshop (Source 7).
·The use of a secco techniques for specific details in this work is not explicitly detailed in the sources, though it is mentioned as a possibility for corrections (Source 1).

cross-referenced from

Named facts about this artwork and artist were checked against these reference pages.

Wikipedia: Fresco — Fresco — part 2↗
- Fresco — part 2 — applied to Arriccio, sinopia, spolvero, giornata, plaster scraping for eyes.
Wikipedia: Fresco — Fresco — part 1↗
- Fresco — part 1 — applied to Buon fresco definition, chemical process of carbonatation, no binder required.
Wikipedia: Buon fresco — Buon fresco — part 1↗
- Buon fresco — part 1 — applied to Durability, alkaline-resistant pigments, giornata definition.
Wikipedia bio — Raphael — part 4↗
- Raphael — part 4 — applied to Influence of Leonardo, pyramidal composition, sfumato modelling.
Wikipedia bio — Raphael — part 5↗
- Raphael — part 5 — applied to Use of cartoons, blind stylus, extensive preparatory drawings.
Wikipedia bio — Raphael — part 7↗
- Raphael — part 7 — applied to Workshop size and collaboration.

Read more about the corpus on the sources page and how the guides are built on the methods page.

read from the painting

observed from the image, not the label

6 dominant colors, measured

what the eye sees

Light pours from the upper left in a soft, warm wash, illuminating the bearded philosopher and globe-holder as the composition's focal point. The arrangement moves from deep burgundy robes on the far left through warm-toned flesh and cream fabrics toward lighter figures on the right, creating a gentle left-to-right flow. The two celestial globes anchored by the elder's hands become secondary focal points—their saturated blue draws the eye back after landing on his face. The background maintains a warm, breathing atmosphere of olive and soft gold rather than receding, which keeps the scene intimate and enveloping.

value structure

The value organization is a gentle V-shape: darkest darks cluster in the burgundy robes at left and deep background, lightest lights sit in the cream drapery and illuminated faces at right, with warm mid-tones (ochre, tan, light brown) dominating the center. Squinting reveals two distinct zones—a warm, lit front plane and a darker, more atmospheric rear—separated not by harsh contrast but by subtle modeling. Most values sit in the middle range, making this a painting about warm and cool shifts rather than extreme light-dark separation.

observed palette and mixes

#e2cab2
titanium white + yellow ochre + touch of raw umber
light cream robes on right, foreground highlights on faces and hands
#b99c81
yellow ochre + raw umber + white
mid-tone flesh, tan robes, warm background areas
#9a7761
raw umber + yellow ochre + ultramarine blue
shadow areas in drapery, depth in bearded face, atmospheric mid-ground
#81513a
raw umber + alizarin crimson + ultramarine blue
shadow modeling on robes, darker flesh tones on cheeks and temples
#624537
alizarin crimson + ultramarine blue + raw umber
burgundy robes at far left, deep background shadows
#46281c
ultramarine blue + raw umber + alizarin crimson
darkest accents in background, pupils, deepest fold shadows
#5b7fb8
ultramarine blue + titanium white + touch of yellow ochre
celestial globes with their characteristic blue-purple tone and constellation lines in gold

edges and brushwork

This fresco technique produces nearly invisible brushwork—edges are soft and blended throughout, especially in flesh tones and between light and shadow on drapery. The globes have slightly crisper outer contours but still integrate into the background through subtle glazing. Drapery folds are rendered through soft value shifts rather than dark outlines, creating fabric that feels dimensional and draped rather than drawn.

a working sequence

01
Compose and block main masses
Lightly establish the overall composition: position the bearded elder centrally, place the two globes (one held high-left, one below), and position the surrounding figures. Block in broad value zones—the dark burgundy mass on the left, the warm-lit center, and the lighter cream figures on the right. Work proportionally; the bearded man's head and globes dominate spatial importance.
02
Establish warm underpainting and background
Lay a warm ochre-and-white wash across the entire background and mid-ground to create atmospheric unity. This warm undertone is crucial—it prevents the background from becoming a dead hole and ties all the figures together. Use raw umber and yellow ochre thinly; let it stay luminous and breathing, not opaque.
03
Block the central bearded philosopher
Paint the elder's face and neck using warm flesh tones (ochre, white, touch of ultramarine for cool shadow). Model his face with soft shifts from light to shadow—no harsh lines. The beard demands patience: lay tan and brown tones, then overlay with white highlights to create its texture without drawing individual strands. His robe shifts from cream to soft purple-gray.
04
Develop the celestial globes
Paint both globes with a rich ultramarine blue base, adding white to the upper portions and ultramarine-raw umber mixtures to the shadow undersides. Once dry, add the constellation patterns in thin lines of golden ochre. These need luminosity and depth—the upper globe especially should feel spherical, not flat.
05
Paint surrounding robed figures
Work the burgundy robes on the left using alizarin crimson tempered with ultramarine and raw umber—avoid pure red. Paint the cream and light robes on the right with white and minimal ochre, keeping edges soft against the background. Suggest the figures behind; they should recede and not compete with the elder.
06
Refine flesh tones and features
Return to all visible faces and flesh. Blend warm light areas (ochre-white) into cooler shadow areas (ochre with ultramarine-alizarin). Add subtle violet and cool tones on shadow side of cheeks and under chins—this keeps flesh from looking orange. Use the softest possible edges; blend by working wet-into-wet or with thin glazes.
07
Model drapery with soft value shifts
Define drapery folds by value, not by drawing lines. On the burgundy robes, add darker umber-ultramarine mixtures to fold interiors; highlight folds with lighter umber-ochre on the forms facing light. On cream robes, keep folds subtle—light tan shadows, not dark outlines. This step makes fabric feel three-dimensional and draped over living bodies.
08
Unify and harmonize final pass
Squint at the whole composition; make sure values read clearly and the warm-cool balance feels balanced. Soften any edges that feel too hard. If any area reads muddy, it likely needs either warmer ochre or cooler ultramarine to clarify it. The globe constellation lines may need a final touch of golden ochre to gleam subtly against the blue.

where studies of this painting go wrong

Blending too aggressively destroys the subtle modeling—work gently and allow some soft edges to remain slightly visible rather than completely fused
Flesh tones often turn orange or muddy; remember that shadows contain cool ultramarine and alizarin, not just darker earth tones
The background can become a flat, dull hole if it isn't kept warm and atmospheric—maintain ochre and raw umber warmth throughout
The globes will flatten if you paint them as simple blue spheres; invest time in subtle modeling, shadows, and the luminous quality of the blue itself
Drapery folds tempt you to draw hard dark lines; resist this and instead use soft value shifts that respect the light direction and fabric volume
The bearded texture can get overworked—suggest it through layered warm and white tones rather than adding individual hair lines

measured difficulty