Which of the following choices best describes a monochromatic color scheme?

A monochromatic color scheme is characterized by the use of varying tints, tones, and shades of a single color. This approach creates a cohesive and harmonious visual effect because all elements are derived from the same hue, allowing for depth and interest without the distraction of multiple competing colors.

In this scheme, tints are created by adding white to the base color, leading to lighter versions, while shades result from adding black, producing darker versions. Tones are achieved by mixing the base color with gray. By utilizing this method, floral arrangements can convey a specific mood or theme while maintaining elegance and simplicity.

The other options describe different color theory principles: combining complementary colors refers to using colors that are opposite each other on the color wheel, creating strong contrast; using adjacent colors involves selecting several colors next to one another for a more subtle and harmonious look; and incorporating multiple colors from different areas of the wheel results in a diverse and complex palette. Each of these approaches serves its unique purpose, but they do not align with the definition of a monochromatic color scheme.