"Delta u,v"@en . "https://www1.eere.energy.gov/buildings/publications/pdfs/ssl/led-color-characteristics-factsheet.pdf"^^ . . "https://www.waveformlighting.com/tech/calculate-duv-from-cie-1931-xy-coordinates"^^ . . . . . "Duv is a metric that is short for Delta u,v (not to be confused with Delta u',v') and describes the distance of a light color point from the black body curve." .