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home·artworks·Head of St. Andrew
Head of St. Andrew by Leonardo da Vinci

plate no. 8359

Head of St. Andrew

Leonardo da Vinci

chalk, paperHigh Renaissancereligious paintingfigureportraitreligious figurebeardprofile

what to study here

It shows how a limited chalk drawing can hold a convincing head through value grouping and edge control alone, against a very dark ground.

This is a head in right profile, lit softly from the left, set against a background that reads as near-black. Study how few value regions carry the whole image: a pale lit forehead and crown (about #e9c59b), a mid-value beard in warm brown, and a muted transition along the jaw and neck. The lightest light sits on the cranium, so the head reads as a glowing mass against the void. Look at the edges. The profile line of nose and chin stays clean, while almost everything else is soft and blended, with modeling done by tone rather than line. The beard follows directional strokes that flow downward and are then blended, so it keeps texture without breaking up the form. The interior modeling of the face is spare, so check how little you need to describe the cheekbone, temple and eye. Copy the value relationships first, then the edge control.

key decision

The painter kept the background near-black and the face modeling to a few close values, so the lit cranium and profile do nearly all the work of describing form.

recreation guide

This recreation guide focuses on Leonardo da Vinci’s 'Head of St. Andrew,' a work executed in chalk on paper. As a High Renaissance drawing, it exemplifies Leonardo’s mastery of tonal gradation and anatomical precision without the use of color. The artwork is distinctive for its reliance on the artist’s documented technique of 'sfumato'—a subtle shadowing that creates a smoky, indistinct boundary between forms, lending a lifelike quality to the subject (Source 4). Unlike his oil paintings, this piece utilizes dry media, specifically chalk, which requires a different approach to layering and blending to achieve the desired softness and depth.

estimated time

10-15 hours over 3-4 sessions

materials

5 items

steps

4 in sequence

materials

itempurposemodern equivalent
White chalk (conté or similar)To create highlights and mid-tones on the paper.White Conté à Paris or high-quality white drawing chalk.
Black chalk (or red chalk for underdrawing)To establish shadows, contours, and depth.Black Conté à Paris or vine charcoal for initial loose sketches.
Toothed paperTo hold the dry pigment mechanically, as chalk relies on surface texture rather than adhesive mediums.Heavyweight drawing paper with a visible grain (e.g., Ingres or Strathmore Bristol with texture).
Blending stump or tortillonTo soften edges and create the 'sfumato' effect by smudging the chalk particles.Paper blending stumps.
Kneaded eraserTo lift chalk for subtle highlights and correct lines without damaging the paper tooth.Standard kneaded eraser.

preparation

surface prep

The support must have a rough natural surface or be prepared with a layer of pumice stone to ensure the chalk adheres mechanically, as dry media contain little to no medium and rely on the paper's tooth for retention (Source 3). Leonardo’s drawings often utilized paper with a slight texture to facilitate the layering of chalk.

underdrawing

Leonardo’s preparatory methods are not explicitly detailed for this specific work in the provided sources, but his general practice involved a deep understanding of anatomy and light. The underdrawing should be light and flexible, allowing for the 'subtle gradation of tone' characteristic of his work (Source 6). Avoid hard, definitive outlines initially, as Leonardo’s style favors the dissolution of lines into shadow.

underpainting

Not applicable for a chalk drawing. However, the concept of building up layers of tone is analogous to underpainting. The artist should begin with the lightest tones and gradually build up darkness, mimicking the way light falls on the form.

color palette

White

White chalk

Highlights and mid-tones, leveraging the white of the paper as the base.

Black/Dark Gray

Black chalk

Shadows, contours, and deep recesses. Leonardo’s use of 'subtle gradation of tone' suggests a wide range of grays rather than stark black (Source 6).

composition

While specific compositional details of 'Head of St. Andrew' are not described in the sources, Leonardo’s general compositional habits include setting figures at oblique angles to create dynamism and depth (Source 4). The focus should be on the head and shoulders, with attention to the 'elusive' quality of expression, similar to the 'subtly shadowed corners of the mouth and eyes' noted in the Mona Lisa (Source 4).

step by step

underdrawing→first pass→refining→finishing

underdrawing

  1. step 01

    Lightly sketch the basic proportions of the head and shoulders using a soft black chalk or vine charcoal. Focus on the oblique angle of the head, consistent with Leonardo’s compositional tendencies (Source 4).

    Tip — Keep lines light and erasable. Do not commit to hard outlines.

    Proportional sketching

first pass

  1. step 02

    Begin applying white chalk to the areas that will receive the most light. Use the tooth of the paper to hold the pigment. Build up mid-tones gradually.

    Tip — Ensure the paper has sufficient tooth to hold the chalk (Source 3).

    Dry media layering

refining

  1. step 03

    Introduce black chalk to define shadows and contours. Apply the chalk in layers, blending with a stump to create soft transitions. Aim for the 'sfumato' effect, where boundaries between light and dark are indistinct (Source 4).

    Tip — Avoid harsh lines. The goal is to mimic the 'smoky' quality of Leonardo’s work (Source 4).

    Sfumato

finishing

  1. step 04

    Refine the facial features, paying particular attention to the eyes and mouth. Use a kneaded eraser to lift chalk for subtle highlights, enhancing the 'lively' quality of the expression (Source 4).

    Tip — Be gentle with the eraser to preserve the paper’s tooth.

    Highlighting with erasure

critical techniques

Sfumato

A technique of softening outlines and blending tones to create a smoky, atmospheric effect. Leonardo used this to give his subjects a lifelike, elusive quality (Source 4).

Mechanical Adhesion of Chalk

Chalk is applied in a powdered state and held on the support by mechanical means, requiring a rough surface or prepared ground (Source 3).

common pitfalls

  • →Creating hard, defined outlines instead of soft, blended transitions. Leonardo’s style is characterized by the absence of distinct lines (Source 4).
  • →Overworking the paper, which can destroy the tooth and prevent further chalk adhesion (Source 3).
  • →Using too much pressure, which can flatten the texture and reduce the ability to layer tones.

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 details of the facial expression or iconography of St. Andrew in this particular drawing are not described in the sources.
  • ·The exact type of paper Leonardo used for this specific work is not specified, though general practices are inferred.
  • ·The specific ratio of white to black chalk used is not documented.

grounded in

The technical procedure in this guide traces to the following classical art-instruction texts.

  • The Science of Painting — CHAPTER XII↗

    • CRAYONS, DISTEMPERING, EGG-PAINTING, WATER — applied to Explanation of how chalk adheres to paper mechanically.

cross-referenced from

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

  • Wikipedia bio — Leonardo da Vinci — part 16↗

    • N/A — applied to Description of sfumato and the elusive quality of expression.
    • N/A — applied to Compositional habits, such as oblique angles.
  • Wikipedia bio — Leonardo da Vinci — part 11↗

    • N/A — applied to General qualities of Leonardo’s work, including subtle gradation of tone.

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

A bearded man's head shown in right profile against a nearly black void, with gentle illumination from the left rendering the face in soft tans and ochres. The dominant form is the large, rounded cranium and the prominent long beard that extends down the neck; these two masses establish the entire composition. The eye rests first on the strong profile of the nose and the defined cheekbone catching light, then travels down through the beard's flowing structure. The background is so dark it reads as pure absence, which creates an almost sculptural isolation of the figure.

value structure

The darkest darks anchor the background as a near-black void with subtle warmth; the lightest lights concentrate on the forehead and crown where light strikes most directly—roughly #e9c59b against deep #2f1e1d background. Three distinct value regions organize the work: the brightly lit upper face in pale tan, the mid-value beard in warm brown with shadow accents, and the transition zone along the jawline and neck in muted medium tones. Squinting reveals a glowing orb of a head—the contrast is dramatic but the interior modeling is spare and subtle.

observed palette and mixes

  • #e9c59b

    yellow ochre + white, with a touch of burnt sienna for warmth

    brightest highlights on forehead and crown; the most luminous areas

  • #e2b789

    yellow ochre + burnt sienna + white

    mid-light passages across the face plane and upper beard

  • #d2a57c

    yellow ochre + burnt sienna

    the bread-and-butter midtone of the face and central beard mass

  • #b48567

    burnt sienna + ultramarine blue (slight), holding warmth

    shadow planes on the cheek, temple, and jaw; darker beard passages

  • #60453c

    burnt sienna + ultramarine blue + touch of burnt umber

    deep shadows in the beard structure and the transition to background

  • #2f1e1d

    ultramarine blue + burnt umber with charcoal underpainting

    the surrounding background; kept nearly pure black for maximum separation

edges and brushwork

All edges are deliberately soft and blended—there are no crisp outlines except the profile line of the nose and chin, which remain clean but never harsh. The beard is rendered with gentle directional strokes that follow the hair's flow downward, then blended subtly to maintain form without losing the sense of texture. The face planes merge through almost imperceptible value shifts rather than visible mark-making; the blending stump has done most of the work, creating an almost sculptural quality where modeling happens through tone rather than line.

a working sequence

  1. 01

    Establish the profile outline and basic skull mass

    Using an HB pencil, lightly sketch the outer contour of the head in profile—pay attention to the prominent cranium and how it tapers at the temples. Block in the jawline and the general wedge shape of the beard extending downward. Mark the eye socket position (mostly closed in this view) and the nose profile from brow to tip. Keep these lines light; they're guides, not final edges.

  2. 02

    Lay down the background and establish contrast

    Using a 4B charcoal pencil or vine charcoal, fill the entire background with deep, dark tone—aim for that near-black #2f1e1d. Apply it uniformly and pressure-even so the void feels consistent and doesn't distract. Leave only the head shape untouched. This dark surround is essential; without it, all the subtle modeling on the face will feel flat.

  3. 03

    Block the major light and shadow regions on the head

    Still using 4B, loosely shade the shadow side of the face (the right side as you look at it) and the lower jaw area with medium-dark tones around #b48567. Leave the forehead and upper cranium quite bright—these are your key light areas. Begin establishing the beard mass as a distinct shape, darker overall than the face but with lighter top edges where light grazes it.

  4. 04

    Develop the plane structure of the face through subtle transitions

    Using a 2B pencil and blending stump, begin refining the transition from light to shadow across the face. The cheekbone catches light distinctly—keep this area in pale tan #e2b789. The temple and the side of the face slide into shadow gradually; this transition should be so soft you can barely see where it shifts. Pay special attention to the subtle roundness of the cranium—this is where many students either over-shade or under-shade and lose the three-dimensional form.

  5. 05

    Structure the beard with directional flow and value variation

    The beard is not one flat mass—it has internal structure. Observe how the beard is lighter at the top edge where light hits it, then graduates darker as it moves downward and toward the jaw. Use gentle downward strokes with a 2B or HB pencil following the growth direction, then blend lightly. The center of the beard should feel slightly darker than its outer edges. Around #b48567 to #60453c for the deeper shadow areas along the beard's inner contours.

  6. 06

    Refine facial features—eye, nose, and mouth

    The eye is nearly closed; define the lid line with a careful, delicate edge. The nose profile is crisp but not harsh—keep its outline clean without making it feel cut out. The mouth area shows subtle shadowing; don't overstate this. The lips are understated; suggest them through soft value shifts rather than drawn lines. These features are secondary to the overall form, so refine them only enough to give the head identity and direction.

  7. 07

    Deepen shadows and add dimensional accents

    Return to your darkest values (#60453c to #2f1e1d) to strengthen shadow areas: the deep beard shadows, the eye socket, and the transitional zones between the lit face and the dark background. These accents should feel few and strategic—not scattered everywhere. The jawline catches a slight reflected light from the background's darkness; preserve a thin line of subtle luminosity there to suggest form without flattening the neck into the background.

  8. 08

    Blend and harmonize overall transitions

    Take a kneaded eraser and lighten any transitions that feel too abrupt. Use a chamois cloth or soft tissue to blend the larger planes gently, particularly across the forehead, cheek, and upper beard. The goal is a surface where light and shadow merge seamlessly. Step back frequently; this is where you'll catch if you've over-blended (losing character) or under-blended (leaving visible seams).

  9. 09

    Final refinements and overall assessment

    Review the value structure as a whole—the head should glow against the dark void. Check that the background remains consistently dark and doesn't muddy the figure's edges. Add any final subtle accents if needed, particularly to sharpen the eye and profile line just slightly. Fix any spots where the paper itself shows through as distracting white gaps. Once satisfied, apply fixative spray lightly to preserve the chalk work.

where studies of this painting go wrong

  • Lightening the background—students often fear it will be too dark and unintentionally brighten it, which flattens the entire head. Commit to the near-black background; it's the frame that makes everything work.
  • Over-blending the face planes—this drawing's beauty lies in visible subtlety, not smoothness. Too much blending erases the soft directional strokes that suggest the beard's texture and the face's form.
  • Making the transition from face to beard too abrupt—the two areas overlap in value; the lower face and upper beard are similar tones. The distinction is in shape and direction, not a hard value line.
  • Forgetting the subtle crown shape—the top of the head curves significantly and catches bright light. Many students under-develop this area and make the skull feel flat.
  • Overworking the facial features—the eye, nose, and mouth are understated in this work. Heavy-handed rendering will break the contemplative, unified mood.
  • Losing the directional flow of the beard—the beard must feel like it's growing and flowing downward, not just sitting there. Gentle linear strokes followed by subtle blending preserve this sense.

measured difficulty

beginner friendliness
value contrast
palette complexity
compositional simplicity
brushwork visibility

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