In Charles Dupin, Honoré Daumier presents a striking portrait of the French mathematician and politician. The painting features a somber color palette dominated by deep browns and muted greens. Dupin is depicted with a serious expression, conveying his intellectual demeanor.

The background is simple, allowing the viewer to focus on the figure of Dupin himself. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. Daumier's brushwork is precise, capturing the details of Dupin's face and attire with realism. The dimensions of the work are approximately 60 x 80 cm, making it a medium-sized portrait.

The use of light and shadow enhances the three-dimensional quality of the figure. Honoré Daumier was known for his satirical works and social commentary, but in this portrait, he captures the seriousness of his subject. Charles Dupin was a prominent figure in the 19th century, known for his contributions to mathematics and engineering. This work reflects Daumier's ability to blend realism with a psychological depth that invites viewers to contemplate Dupin's character.

Interestingly, this painting was created during a time when Daumier was also focused on political caricatures, showcasing his versatility as an artist.