Daylight sonography refers to the technique of using color-tinted, brightness and contrast-controlled B-mode ultrasound images optimized for well-lit environments. Originally introduced as Photopic (“Tageslichtsonographie”, Daylight sonography) by Siemens, this approach addresses the limitations of grayscale imaging under ambient light conditions. With the growing emphasis on point-of-care ultrasound (POCUS) and mobile diagnostics, daylight-compatible imaging modes such as Photopic Mode have become increasingly relevant since they are performed under daylight conditions. This paper explores the technical background, visual physiology, clinical applications, implementation challenges, and future perspectives of daylight sonography, advocating for broader use and standardization. Standardization, further clinical validation, and integration with emerging technologies such as artificial intelligence (AI) are essential to fully realize the potential of daylight sonography in routine practice.