Our star acts as a black body of ~6000K. Conveniently, the range of light that it emits has many transitions of common molecular electron shells, which makes spectroscopy a thing, and also allows us to have color vision since many chemical compounds have color: they reflect or absorb different parts of solar spectrum.
However, the mechanism behind this coincidence is not apparent. For black body radiation, 6000K is not a special case. Is there a reason why, with slightly different tuning, they will not part ways, such as either one shifts to radio range or deep UV? That would prevent color vision (contrast vision may still be a thing) or outright make an eye hard to construct, since electromagnetic radiation will no longer meaningfully interact with chemical compounds to excite them in controlled fashion. Then only low-resolution sense of warmth will be available.
Is it a coincidence or is there a good reason why EM transitions have to happen in the 350-800 nm range that contains the black body radiation peak of most stars?
I've found some prior questions but they don't have accepted answers and different focus.
