Franz Kline, renowned for his striking black and white abstract paintings, ventured into color abstract works later in his career, showcasing his versatility and depth as an artist. While Kline's early works are predominantly in black and white, by the late 1950s, he began reintroducing color into his palette. This shift marked a significant development in his artistic expression, adding a new dimension to his already powerful compositions.

Kline's color abstract works, much like his black and white paintings, were characterized by their dynamic, gestural brushstrokes and the emotional intensity they conveyed. The introduction of color brought a new layer of complexity and vibrancy to his art, allowing Kline to explore different moods and atmospheres. Works such as "Blueberry Eyes" (1959–60) demonstrate Kline's use of color to suggest spatial or atmospheric depth, with deep, saturated blues creating a resonant visual impact.

Despite the shift towards color, Kline maintained the bold, energetic lines and abstract forms that defined his style. His color works continued to embody the principles of Abstract Expressionism, emphasizing the spontaneity of the painting process and the expression of the artist's inner state. The Smithsonian American Art Museum notes that while Kline is often remembered for his black and white works, he utilized color throughout his career, particularly towards the end, exploring its emotional and expressive potential.

Kline's exploration into color abstract works represents an intriguing and somewhat underexplored aspect of his oeuvre. These works stand as a testament to his experimental spirit and his ongoing quest to capture the essence of human emotion and the complexities of the modern experience through abstraction. Though his life was cut short at the age of 51, Kline's contributions to the field of abstract expressionism, both in black and white and in color, continue to resonate and inspire​ (Smithsonian American Art Museum)​​ (ArtWizard - Buy Art Online)​.