With 3840 × 2160 at 16:9, the U2723QE is built for clarity—code, spreadsheets, timelines, and dense UI benefit immediately, and that's true before you talk about color modes or calibration. Dell USA's own positioning puts brilliant color and contrast and IPS Black front and center, and Ars Technica similarly describes the IPS Black approach as producing a more vibrant picture than typical IPS, with deeper-looking dark tones in real content comparisons.
That said, Ars Technica is equally direct about the ceiling: if your priority is dramatic HDR performance, there are better HDR-focused displays than this class of IPS work monitor. The U2723QE delivers sharpness first, cinema second—a positioning that fits its work-first identity but means HDR-focused shoppers should look elsewhere for standout contrast.