A seminal work of Color Field painting, Onement V features a vertical band of colour bisecting a deep blue field, exploring themes of unity and scale.

Onement V, created in 1952, represents a specific development in the career of Barnett Newman. This work belongs to a series of paintings that explore the concept of the 'zip', a vertical band of colour that divides the canvas. In this instance, the composition consists of a deep, saturated blue field bisected by a slightly lighter, vertical strip. The application of paint is deliberate, allowing for subtle variations in texture and tone across the surface of the canvas. Newman sought to remove traditional elements of composition, such as perspective or figurative representation, to focus on the immediate experience of colour and scale. The 'zip' acts as a structural element, defining the space while simultaneously asserting its own presence. By limiting the visual information, the artist invites the viewer to engage with the physical reality of the painting. The relationship between the vertical line and the surrounding field creates a sense of balance, despite the apparent simplicity of the arrangement. This piece reflects the concerns of the New York School during the mid-twentieth century, where artists moved away from gestural abstraction toward more controlled, expansive fields of colour. The title, Onement, suggests a state of unity or reconciliation, a theme that occupied Newman throughout his practice. The work does not rely on external references or narrative content. Instead, it functions as an autonomous object, demanding attention through its sheer presence and the interaction between the two distinct shades of blue. The scale of the work is intended to envelop the viewer, creating an environment where the colour becomes the primary subject. Through this reduction, Newman achieves a clarity that remains a defining characteristic of his contribution to modern art.