Certified Professional Photographer (CPP) Practice Exam

The type of color scheme that consists solely of black, white, and grey is referred to as an achromatic color scheme. Achromatic means "without color," where there is no hue that can be found on the color wheel. Instead of incorporating any colors, this scheme uses varying shades of black, white, and grey to create contrast and texture in an image.

This approach is often employed in photography and design to emphasize form, composition, and texture without the influence of color, allowing for a more timeless and classic aesthetic. It is particularly effective in situations where the focus is intended to be on shapes and patterns rather than vibrant colors.

Monochromatic schemes involve different shades, tones, and tints of a single hue, which is different from the achromatic scheme that lacks color altogether. Polychromatic schemes utilize multiple colors that can cause distractions from the primary subject, while complementary schemes use colors that are opposite each other on the color wheel, which again differs from an achromatic palette. Thus, the defining characteristic of an achromatic color scheme distinctly identifies it as the correct choice here.