Self-portrait in a blue skirt

Self-portrait in a Blue Skirt (1805) is a puzzling and fascinating work in which Runge depicted himself in what appears to be female dress — a blue skirt rather than the coat and cravat conventional for male self-portraiture. Interpretations have ranged from gender play to symbolic self-identification with feminine aspects of creativity, and the work's anomaly within Runge's output has attracted sustained scholarly attention. By 1805 Runge was engaged in the most ambitious phase of his Times of Day cycle and was deeply immersed in mystical philosophy; unconventional self-representation may have carried specific symbolic meaning within his private iconographic system. The oakwood panel support indicates careful material preparation. The Hamburger Kunsthalle preserves this work as one of the most challenging images in Runge's career — one that resists easy interpretation and rewards sustained looking.

Painted on oakwood panel, the work achieves a surface stability and luminosity appropriate to Runge's carefully layered technique. The blue of the skirt — a distinctive, saturated hue — is the dominant chromatic element, inflecting the ambient light around the figure. The face is rendered with Runge's typical psychological directness, creating a dissonance between the conventional portrait gaze and the unconventional costume.