Sometimes called pearlescent or iridescent pigments, interference pigments are a polymer emulsion (paint) containing titanium-coated mica flakes. Because they interfere with light waves, technically interference paint is the most accurate term. Painted over a dark color, you see the labeled interference color. Painted over a light color, you see the complimentary color. The color changes depending upon the angle you are viewing the paint. Interference paint adds interest and highlights without too much shimmer. In the right lighting it is quite alluring. I urge you to watch the videos that are posted with my paintings. The picture alone does not do justice to my art. Much of my work requires the right lighting in order to be fully appreciated.