Structural Color

Structural color is common in nature and has many characteristics that differ from those of chemical
pigments or dyes. Rather than absorbing and reflecting wavelengths of light, structural color is
produced by refracting wavelengths of light through microscopic physical structures. Because the
light is being refracted instead of reflected, the resulting color is often brighter and more intense
than other forms of color creation.

For example, the beautiful, iridescent colors on peacock
feathers, some butterfly wings and opals are produced
by structural color.