When Georges Seurat began work on what would become Bathers at Asnières, he produced a series of studies that reveal his evolving vision—and among these, The Rainbow: Study for 'Bathers at Asnières' stands out for its rare glimpse of a rainbow arcing over the Seine. This motif does not appear in the final painting, making this study a fascinating record of Seurat’s experimentation. The presence of the rainbow has led scholars to wonder whether Seurat considered a more overtly optimistic or symbolic atmosphere for his finished composition.

The study thus captures a fleeting idea, later abandoned, but preserved here in vivid form. In this preparatory work, the viewer is drawn to the luminous sweep of the rainbow, which arches above the riverbank where bathers relax in the soft light of a summer afternoon. The figures, rendered with broad, almost blocky strokes, are absorbed in quiet leisure, their forms harmonized with the landscape’s gentle curves. The rainbow itself, a rare motif in Seurat’s oeuvre, introduces a sense of fleeting beauty and perhaps hints at the promise of renewal or tranquility after a storm.

Unlike the more static, formal arrangement of figures in the final Bathers at Asnières, this study feels spontaneous, with a looser handling of paint reminiscent of works by Claude Monet—another artist fascinated by the play of light on water. The precise medium of The Rainbow: Study for 'Bathers at Asnières' is not always recorded, but it likely employs oil on panel or canvas, in keeping with Seurat’s other studies from this period. The painting’s journey has been quieter than that of its monumental successor, but it remains an important document for understanding Seurat’s process as he moved toward the disciplined pointillism of Neo-Impressionism. Today, the study is valued not only as a step toward a major work but also as a glimpse into the artist’s shifting ideas—a moment when the rainbow, briefly, was to shine over the banks of Asnières.