The analogous colors shown here are created in acrylic painting.
An analogous, or related, color scheme is made of hues near each other on color schemes the color wheel. They tend to look pleasant together because they are closely related.
Analogous colors are explained in more details in the color wheel movie under:
Color Wheel Theory
Date Painted: 2009
Painting Width = 8 inches (204 mm)
Painting Height = 11 inches (280 mm)