Colour in SDR mode was vivid and dazzling soon after calibration. The PX277 OLED MAX may be very accurate after adjusted. I compromised with a rather darker gamma placing to further improve saturation. Turning up the brightness slider introduced the picture back to a shiny state. HDR online games like https://isitgoodtohavesaturationm46790.blogsmine.com/31631390/is-it-good-to-have-saturation-max-on-gaming-monitor-an-overview