You can't can't use a use a dropper and compare color hex/HSL values on different pictures with different lighting and say "Yup - that's the same", otherwise SF

You can't can't use a use a dropper and compare color hex/HSL values on different pictures with different lighting and say "Yup - that's the same", otherwise SFX wouldn't need color grading[1]. The second picture seems to be from a very brightly-lit environment - to the extent of washing out his blue shirt (collar), but the first picture gives no such cues, and appears less well-lit (virtually). AI models have no implicit knowledge of environmental lighting, and if the training data is exceedingly made of brightly lit images, may end up generating images that belong in well-lit environments (fairer-looking skin tones), but in low-light contexts. When looking at these generated images, the human eye does what it does best: determine relevant gamma-correction using all available cues. [1]. Assets rendered in the same color under all scene lighting conditions.