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Description: Hematology analysis is an integral part of medicine but requires complex systems, expensive chemical reagents, time-consuming protocols and highly trained personnel for operation. This manuscript presents a novel label-free optical assay based on molecular imaging with deep-ultraviolet microscopy that enables major advancements in hematological analysis. We show that our novel approach circumvents significant limitations of the current standard-of-care while delivering equal diagnostic power for peripheral blood and bone marrow analysis. Because our technology achieves fast, reliable, quantitative and simple blood cell analysis in a low-cost configuration, it can simplify and improve current clinical hematological analysis. This has work significant implications towards the development of a hematological analyzer with improved capabilities for clinical use, as a point-of-care device, and for low-resource settings.