Rainbow

Light falls from the upper left, creating a luminous sky dominated by a golden-yellow rainbow that arcs across muted grays and warm ochres. Three figures occupy the foreground—two seated on the grassy left bank, one standing at right with a yellow parasol—all gazing toward the industrial cityscape across the water. The eye travels first to the rainbow's warm curve, then down to the figures as anchors, finally across the calm water to the distant factory silhouettes and smoking chimneys.

The darkest values are reserved for the figures' clothing (the seated woman's dress, the standing figure's coat and hat) and the tree masses framing both sides. Mid-tones dominate—the water, grass, and sky are all compressed into a narrow band of soft yellows, warm grays, and pale blues. The lightest lights pool in the sky itself and on the seated nude figure's back. Squint and you'll see three distinct zones: dark figures and foliage, a luminous middle register of water and atmospheric haze, and a glowing sky.

• #d0c9af

  Lead white + yellow ochre + raw sienna, warmed slightly

  Sky foundation and the rainbow's brightest yellow band

• #c3bca5

  Lead white + raw sienna + touch of ultramarine

  Mid-tone sky areas and water reflections

• #b5ae97

  Yellow ochre + raw sienna + ultramarine

  Grass and foreground earth tones

• #ab926a

  Raw sienna + burnt umber + yellow ochre

  Darker grass and foliage shadows

• #787863

  Ultramarine + burnt umber + yellow ochre

  Tree foliage, figures' dark clothing, distant city silhouettes

• #393627

  Ivory black + burnt umber

  Darkest accents in the standing figure's coat and the right tree mass

Seurat uses soft, feathered edges throughout—the rainbow dissolves rather than declares itself, and the transition between sky and water is nearly imperceptible. Foliage is suggested with loose, directional strokes that follow the tree forms without anatomical precision. Figures are rendered with slightly sharper edges to anchor them spatially, but even their outlines soften where they meet the landscape; note how the seated figure's bare back merges gently into the grass.

1. 01

   Establish the sky-water division and rainbow structure

   Thin your yellows and warm grays with medium and lay in the entire upper two-thirds as a soft, warm sky. Work from lightest yellow ochre tones at the horizon, building toward slightly cooler grays near the top. Lightly sketch the rainbow's arc with a pale yellow-ochre mix—don't outline it; instead, the curve should be visible only as a gentle concentration of warmer tone along that path. Block in the water as a cooler, slightly more blue-gray version of the sky tones.

2. 02

   Establish the grass and foreground bank

   Mix a warm, muted olive-tan from yellow ochre, raw sienna, and a touch of ultramarine. Apply this across the left and right foreground where the bank rises. Keep the value close to the sky and water—this is not a dark green but rather a dusty, atmospheric tone. Notice the grass catches warmer yellow light on its upper plane where the figures sit.

3. 03

   Block in the three figures with loose shapes

   Using burnt umber + ultramarine, establish the two seated figures on the left as simple silhouettes—dark, undefined shapes for now. Block the standing figure at right with the same dark mix, noting her upright posture and the yellow parasol shape above. Don't refine features; focus on their positions as compositional anchors. The seated nude's flesh should be warmer than her companion's clothed body.

4. 04

   Define the tree masses and city silhouette

   Using your dark blue-brown mix, describe the tree foliage on both sides of the composition with loose, organic brushstrokes that suggest depth without botanical detail. Darken the distant city horizon with a warm-gray silhouette; suggest factory chimneys as thin vertical accents. Keep these forms soft-edged so they sit far back. The trees should frame the scene without drawing attention away from the figures and rainbow.

5. 05

   Intensify the rainbow with warm glazes

   Using a thin mix of lead white + yellow ochre + a whisper of alizarin, carefully glaze over the rainbow path with light, horizontal strokes. The color should be warmer and more saturated than the surrounding sky but never strident. Layer a second glaze of pure pale yellow ochre + white along the brightest part of the arc. Step back frequently—the rainbow should emerge subtly, almost as though the light itself is warm in that region.

6. 06

   Refine water reflections and atmospheric depth

   Using pale blue-gray (ultramarine + white + touch of raw sienna), describe horizontal ripples and reflections in the water. Keep these strokes loose and directional, following the water's plane. Slightly warm the water's mid-tones where the reflection of the sky falls; slightly cool it where shadows from the distant shore touch it. The water should feel calm and mirror-like, not agitated.

7. 07

   Model the figures with warm and cool passages

   Lighten your figure shadows selectively: the seated nude's back is warmer (burnt sienna + white), the seated clothed figure's dress remains quite dark. The standing figure's yellow parasol is a bright, dry ochre that pops against her dark coat. Add subtle warm highlights where light catches the seated figures' bodies and clothing edges. Keep the brushwork loose; don't over-render faces or hands.

8. 08

   Unify and adjust atmospheric perspective

   Step back and assess value relationships. The distant city should be noticeably paler and cooler than the foreground; adjust if needed. The sky's warmth near the rainbow should diffuse gradually outward. Use a large, soft brush with diluted gray-white to soften any hard edges between major forms—the figures to grass, trees to sky, water to horizon. The entire painting should read as a unified atmosphere, not discrete shapes.

9. 09

   Final accents and color temperature adjustment

   Reinforce the darkest darks in the figures' clothing and tree foliage with deep blue-black, applying only where shadow is deepest. Warm the sunlit grass with a final dry brush of pale ochre-white. Check that the rainbow feels like a natural phenomenon, not a painted arc—it should be the warmest note in the sky but not isolated. Allow the painting to rest; Seurat's restraint and atmospheric unity are the goal, not dramatic contrast.

• Making the rainbow too bright, obvious, or graphic—it must feel atmospheric and integrated into the sky's warmth, not painted over it like a sticker.
• Rendering the figures too anatomically detailed or sharp-edged; they are part of the landscape's soft focus, not portrait studies. Keep them generalized and integrated.
• Darkening the grass too much or making it green—the foreground is a dusty, warm tan-ochre in shadow, not vibrant. The whole painting is built on muted, harmonious tones.
• Losing the sense of stillness and calm in the water—avoid agitated brushwork or too many ripples; the water should reflect the sky and feel glassy, almost melancholic.

beginner friendliness

value contrast

palette complexity

compositional simplicity

brushwork visibility