Hemmendinger's work in color standardization and measurement established him as one of the world's preeminent experts in color science. After graduating from Harvard and Princeton, Hemmendinger joined the U.S. Navy and worked in submarine warfare research.
Hemmendinger's expertise in color standardization and measurement led to his prominence in the field of color science. Following his education at Harvard and Princeton, he served in the U.S. Navy and conducted research on submarine warfare.