Final answer:
Monochromatic color scheme refers to the use of variations of a single hue to create an artwork or design. It creates unity and harmony in the artwork by using different shades, tints, and tones of the same color.
Step-by-step explanation:
Monochromatic color scheme refers to the use of variations of a single hue. It involves using different shades, tints, and tones of the same color to create an artwork or design.
The advantage of using a monochromatic color scheme is that it creates a sense of unity and harmony in the artwork, as all the colors relate to one another.
For example, in Monet's Untitled (Houses of Parliament, London) from c. 1900, you can see the use of different shades of blue to create a monochromatic color scheme.