Why did Georges Braque and Pablo Picasso use subdued colors during Analytical Cubism?

During the phase of Analytical Cubism, Georges Braque and Pablo Picasso utilized a restrained, nearly monochromatic color palette—typically consisting of browns, grays, greens, creams, or blues—to ensure that viewers remained focused on the artists' primary objective: the structural analysis of form.12

By simplifying their color schemes, the artists avoided visual distractions that might otherwise detract from the complex, fragmented, and multi-perspective representation of objects. This subdued palette was essential for presenting the rigorous breakdown of space and volume, allowing the viewer to engage with the geometric construction of the subject rather than being diverted by decorative or illusionistic color effects.21