Color effect
Structural Color
Color created by physical structure rather than pigment, seen in wings, feathers, beetles, bubbles, and opals.
Natural phenomena, ancient observation, modern materials science Microscopic structure, interference, scattering, angle-dependent color seed
What it is
Structural color appears when tiny physical structures shape light through interference, scattering, or diffraction. The color is produced by geometry, not simply by a colored substance.
Basics
- Butterfly wings, peacock feathers, beetle shells, soap bubbles, and opals are classic examples.
- Structural color can shift with viewing angle, which is why it often appears iridescent.
- It is useful for showing that color can come from structure, material, light, and perception at the same time.