
plate no. 1155
Paul Signac, 1922
what to study here
It shows how bare paper, soft washes and loose linear marks can carry a rainy harbor sky with very little rendered detail.
Study how the sky is built and how it is separated from the rest of the sheet. The storm system takes up nearly half the composition: pale cream cloud pushed against darker purple-gray masses at upper right. Edges dissolve where the washes pool and meet the paper, so the clouds are not held by outline. Over the wash, diagonal cross-hatching in the sky and on the building facades reads as falling rain. That linear work stays loose and contrasts with the soft washes. Check the value structure too: the lightest value is the bare paper, the middle values carry the buildings, water and figures, and the darkest notes sit in the right-hand clouds, the striped building's shadows, the foliage and the ship hulls. The tall vertically striped building on the right anchors the composition against that dark cloud mass. Small yellow accents on windows and storefronts are the one saturated note against a muted palette. Look at how little is rendered in the water and figures.
key decision
The painter let the paper serve as the lightest value and drew diagonal rain hatching over the dried washes, so atmosphere comes from the washes and structure from the line.
recreation guide
Paul Signac’s 'Le Havre with rain clouds' (1922) is a cityscape executed in chalk and watercolor, reflecting his lifelong engagement with seascapes and port views (Source 3). While Signac is historically defined by his development of Pointillism and Divisionism using oil paint, this work utilizes a mixed-media approach combining opaque body colors (chalk) with transparent washes. This technique allows for the juxtaposition of solid, powdery textures with fluid transparency, a method described in historical treatises as a complex style mixing 'impastements, opacities, and transparencies' (Source 1). The work likely demonstrates Signac’s characteristic interest in light and atmosphere, adapted here to the immediacy of watercolor and the structural weight of chalk.
estimated time
10-15 hours over 3-4 sessions
materials
4 items
steps
5 in sequence
materials
| item | purpose | modern equivalent |
|---|---|---|
| High-quality watercolor paper (linen or cotton rag) | Support for the mixed media; must withstand wet washes and abrasive chalk without tearing or excessive absorption. | 300gsm cold-pressed cotton watercolor paper |
| Watercolor paints (transparent) | To create washes for the sky, water, and atmospheric effects, utilizing the transparency characteristic of the medium. | Professional grade tube watercolors |
| Chalk or dry pastels | To provide opaque highlights, structural lines, and 'body-color' effects that remain in a state of powder on the support. | Soft pastels or white charcoal/chalk |
| Gum arabic (optional) | To act as an agglutinative if mixing body colors, though chalk relies on mechanical adhesion to the paper tooth. | Liquid gum arabic or fixative spray for final preservation |
preparation
surface prep
The paper should be dry and free from dampness, as dampness causes sizing to ferment and decompose, leading to stains (Source 1). Signac’s use of chalk requires a surface with sufficient 'tooth' or roughness to mechanically hold the powder; if the paper is too smooth, it may need to be prepared with a layer of pumice stone or similar abrasive to ensure the crayon/chalk adheres (Source 2). The paper should ideally be made from linen rags and bleached naturally, avoiding chlorine which can burn the fibers and destroy colors (Source 1).
underdrawing
Signac’s Neo-Impressionist background suggests a structured approach, but for watercolor/chalk works, the underdrawing is likely minimal or integrated into the first layer of chalk. Given that chalk is applied in a 'state of powder' and relies on mechanical means to stay on the support, the initial marks may serve as both drawing and opaque color application (Source 2). There is no specific source detailing Signac’s preparatory sketches for this specific watercolor, so the artist should likely begin with light chalk outlines to establish the cityscape structure before applying washes.
underpainting
In this mixed medium, the 'underpainting' phase is effectively the application of the chalk/body colors. According to historical technique, body colors are ground with little medium, remaining opaque and powdery (Source 2). These opaque layers should be applied first to reserve the lights and establish the solid forms of the buildings and clouds, as watercolor washes are transparent and will not cover the chalk effectively if applied underneath.
color palette
White/Off-White
White chalk or reserved paper
Highlights on buildings, foam on water, and bright areas of rain clouds. In watercolor, lights are often reserved by leaving the paper bare (Source 1).
Blues and Greys
Transparent watercolor washes (e.g., Prussian Blue, Payne’s Grey)
The sky, rain clouds, and water. Signac’s seascapes typically utilize a wide range of blues and atmospheric greys to depict light and weather.
Earth Tones/Browns
Opaque chalk or body color
Structural elements of the cityscape, such as buildings and docks, providing contrast to the transparent sky.
composition
Signac is best known for seascapes and views of ports (Source 3). While specific compositional details of 'Le Havre with rain clouds' are not described in the sources, Signac’s general practice involves systematic working methods and a focus on the interaction of light and color (Source 3). The composition likely balances the horizontal expanse of the sea and sky with the vertical or structured forms of the port city, consistent with his other harbor views.
step by step
underdrawing
step 01
Lightly sketch the main structures of Le Havre (buildings, docks, ships) using white or light-colored chalk. Ensure the paper has enough tooth to hold the powder.
Tip — Do not press too hard initially; the chalk adheres by mechanical means to the rough surface (Source 2).
Crayon application
first pass
step 02
Apply opaque body colors (chalk) to define the solid forms and highlights. This creates the 'impastements' and opacities mentioned in watercolor theory.
Tip — Remember that these colors contain little medium and remain powdery; they will not blend smoothly like wet paint (Source 2).
Body-color application
step 03
Apply transparent watercolor washes for the sky, rain clouds, and water. Work around the chalk highlights, reserving the paper or chalk for the lights.
Tip — Watercolor properly so called is a wash where the paper is reserved for lights (Source 1). Ensure the paper is dry before applying subsequent layers to prevent staining from irregular sizing (Source 1).
Transparent wash
refining
step 04
Layer additional washes to deepen shadows and atmospheric perspective. Signac’s scientific approach to color suggests careful modulation of tones to depict the 'rain clouds' and light effects.
Tip — Avoid overworking the paper, which can wear out the sizing and cause stains (Source 1).
Glazing
finishing
step 05
Add final chalk details for sharp edges or bright highlights that were lost in the washes. Fix the work if necessary, noting that fixing crayons is a 'never-ending question' and may affect solidity (Source 2).
Tip — Be aware that mixing processes (opaque and transparent) results in non-uniform solidity across the painting (Source 2).
Crayon detailing
critical techniques
Mixed Opacity and Transparency
Combining opaque body colors (chalk) with transparent watercolor washes. This allows for a complex style that includes both impastements and transparencies (Source 1).
Mechanical Adhesion of Chalk
Chalk is applied in a state of powder and held by the roughness of the paper surface. This requires a support with natural roughness or a prepared surface (Source 2).
Reserving Lights
In watercolor, lights are often created by leaving the paper bare or by using opaque chalk highlights, rather than painting white over dark areas (Source 1).
common pitfalls
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.
grounded in
The technical procedure in this guide traces to the following classical art-instruction texts.
The Science of Painting↗
cross-referenced from
Named facts about this artwork and artist were checked against these reference pages.
Wikipedia bio — Paul Signac↗
Read more about the corpus on the sources page and how the guides are built on the methods page.
what the eye sees
This harbor scene is dominated by a dramatic, layered storm system overhead that occupies nearly half the composition—pale cream clouds pushed against darker purple-gray formations on the right, creating a moody, overcast moment. The eye moves from the foreground water (where a small group of figures stands on the quay) through the harbor's activity (a sailing ship under full sail, various masts and rigging) to the dense cityscape, where a distinctively tall, vertically striped building on the right side anchors the composition. Light filters softly from above through the cloud cover, creating diffuse illumination typical of a rainy harbor afternoon. The cross-hatching marks throughout the sky and buildings read as falling rain, giving the entire scene a sense of movement and transience.
value structure
The darkest values cluster in three areas: the rightmost storm clouds, the deep shadows within the striped building, and the tree foliage and ship hulls. The lightest values are the paper itself, visible throughout as the cream base of clouds, buildings, and sky. Mid-values dominate the composition—the tan-gray buildings, the water, the clothing of figures. Squinting reveals the key contrast: dark cloud mass upper right against light sky center, which guides the eye's entry point and creates atmospheric drama.
observed palette and mixes
#e8e4de
Titanium white with a touch of raw sienna
Base paper tone, cloud highlights, lightest building facades
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Raw sienna with ultramarine blue
Mid-tone buildings, water surface, average architectural shadows
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Ultramarine blue with burnt sienna
Darker building areas, water shadows, cloud undersides
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Ultramarine blue with alizarin crimson
Storm cloud masses at upper right, moody sky transitions
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Viridian green with lemon yellow
Water reflections and foliage touches on left side
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Cadmium yellow light, used nearly pure
Building window accents, storefront highlights, architectural punctuation
edges and brushwork
The ink line work is confident and sketchy—it describes buildings, boats, and figures with a loose hand that prioritizes clarity over precision. Watercolor washes pool and blur where they meet paper, creating soft, diffuse edges that suggest atmosphere; notice how cloud edges dissolve into the sky rather than holding a line. Cross-hatching and diagonal scribble marks (especially visible in the sky and on building facades) add energy and read as rain; this linear texture contrasts with the soft washes, creating visual interest without requiring rendered detail.
a working sequence
Map the composition lightly in pencil
Block in three horizontal zones: the complex sky (roughly top 45%), the middle-ground harbor with buildings and ships (middle 35%), and the foreground water with quay and figures (bottom 20%). Place the tall striped building on the right as your compositional anchor—it should feel both prominent and slightly off-center. Lightly indicate the sailing ship's mast and main sail in the harbor center. Don't overwork; these are guides only.
Establish the sky with layered washes
Start with very dilute, warm tan over most of the sky—this is your base layer and should feel soft and open. While the paper is still damp, drop in slightly cooler, grayer tones toward the edges. Reserve the upper right corner for your darkest cloud mix (ultramarine and alizarin crimson). Let these washes overlap and soften naturally; don't chase the edges. The goal is a turbulent, overcast feeling where light paper shows through at cloud peaks.
Define the rain and cloud structure with ink lines
Once the sky fully dries, use your ink pen to draw diagonal parallel lines throughout the sky—these represent falling rain and add movement across the entire upper half. Add the structural lines of individual cloud shapes, especially the dramatic formations at upper right and the darker underbellies of the large central clouds. This linear work goes over the wash and gives the sky its distinctive character.
Wash the middle ground buildings with warm neutrals
Apply a dilute warm tan-gray wash across the building facades using horizontal, loose strokes. Keep most areas quite light—the paper should glow through. The tall striped building on the right should be slightly darker in its lower portions and darker on its left (shadowed) side. Add touches of warm mauve or rose to some facades on the left side to catch what warmth remains even in overcast conditions.
Add architectural detail and harbor activity with ink
Draw the window grid of the tall striped building with confident, deliberate strokes. Indicate the rigging and hull of the sailing ship in the center. Sketch in smaller buildings, the quay railing, and the figures in the foreground—keep these economical; a few marks suggest people rather than rendering them fully. Use the pen to define shadows on building facades with short, parallel marks. Add the flags and pennants on ships to suggest movement.
Paint the water with cool greens and soft movement
Apply a light blue-green wash across the water area using curved, wavy strokes that follow the water's surface. Keep it very dilute and leave white paper visible for highlights and reflections. Add slightly darker green where water is deeper (center-right) and warmer, more neutral tones where it reflects the nearby quay and sky. The water should feel calm but alive, with minimal texture marks.
Apply shadows and chromatic accents for depth
Add yellow-green touches for foliage on the left. Paint darker, more saturated shadows beneath eaves and in window openings with a mix of ultramarine and burnt sienna. Emphasize dark tree foliage silhouettes on the left side. Now add small touches of cadmium yellow and warm reds to select building facades and window details where light catches edges. These chromatic accents should feel deliberate and placed, not scattered.
Final definition and evaluation
Add final ink details to clarify building edges where they disappear into background, especially where the striped building needs stronger definition. Deepen shadows under the quay line. Consider adding small clothing details or posture to the foreground figures to ground the scale. Step back: is the sky the most complex, detailed area? Does the eye move from storm clouds through masts to the tall building? Resist over-rendering; this is a sketch with atmospheric power, not a polished drawing.
where studies of this painting go wrong
measured difficulty
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