Pathology increasingly demands imaging technologies that are scalable, cost-effective, and compatible with existing clinical infrastructure. While advanced nanophotonic and label-free imaging techniques can provide rich contrast, their adoption is often limited by complex fabrication, expensive instrumentation, and substantial workflow disruption. Structural-color nanocavities offer a promising route to bridge this translational gap. By translating intrinsic tissue properties into visible color contrast, they enable stain-free visualization without the need for staining reagents or complex optical systems. In this seminar, I will introduce a scalable structural-color nanocavity platform for stain-free digital pathology, focusing on its scalable fabrication, the mechanisms underlying tissue-dependent color contrast, and compatibility with existing imaging workflows for diagnosis.