An embossed film assembly is provided that includes a substrate and at least one security layer formed from a polymer layer having an image formed therein and a high refractive index (HRI) layer on the polymer layer. The polymer layer and the HRI layer form a holographic security feature on the substrate. The image in the polymer layer is formed from low frequency gratings configured to generate a pastel color in the holographic security feature.

One example includes an injection-molded component comprising a surface surrounded by peripheral edges and which is formed via an injection-molding process. The surface includes a three-dimensional surface feature to render the surface as being non-planar across at least a portion of the surface. The surface also includes a plurality of holographic micro-features formed across the surface and being to interact with ambient light to provide a holographic image corresponding to an authentication mark associated with the injection-molded component.