Alex Katz's piece titled Purple Dancer is a striking example of his minimalist and expressive style. The artwork features the close-up of a dancer's face, rendered in a rich, deep purple against a black background. Katz's use of bold, unmodulated lines and limited color palette creates a sense of drama and intensity, highlighting the contours and features of the dancer's face.

The composition is dominated by the dancer's downward gaze, with her eyes closed in a serene and introspective expression. Katz captures the elegance and grace of the dancer with minimal detail, relying on the simplicity of lines and the contrast between the purple and black to convey the subject's emotion and movement. The smooth curves and flowing lines suggest a sense of fluidity, as if the dancer is caught in a moment of stillness amidst her performance.

The choice of purple as the primary color adds a layer of depth and sophistication to the piece, evoking feelings of mystery and contemplation. Katz's technique of reducing the image to its essential elements allows the viewer to focus on the subtle nuances of the dancer's expression and posture, enhancing the emotional impact of the artwork.