Lán shǎn dié de chìbǎng bìngbù hán lánsè sù, tā de lánsè wánquán láizì jiégòusè.
Morpho butterfly wings contain no blue pigment — their blue comes entirely from structural color.
Tips
usage
Contrast with 色素色 (pigmentary color). Structural color comes from light scattering, thin-film interference, or photonic crystals in the surface — crush a Morpho wing to powder and the blue disappears, because the microstructure is gone.