For all classical works, I reckon there’s no question the light they were created under would be some variant of black-body radiation: sun, incandescent bulb, fire. The distinguishing part of black-body radiation is that its spectrum is continuous throughout.
Compared to incandescent lamps, fluorescent sources including LEDs emit spectrum that is bumpy or even spiky. Those spikes fall within R, G and B and the resulting light looks white itself; but the objects or paints from which it reflects may not look the same[0]. At extremes, depending on what the paint is made of (not simply its colour!), the picture may look very different.
(Ever noticed how you may admire an amazingly vibrant flower in the field, but no photo seems to reproduce that brilliance? That’s another example of metameric failure.)
To see a work of art how it was intended to look, you should view it under the light it was created in. Unfortunately, it appears impossible to break from the shackles of LED these days. Depending on where you live, it may actually be impossible to source a tungsten filament bulb. You’d think it should be easy and worth the extra electricity expense to the management of any good gallery or museum, but apparently not.
Compared to incandescent lamps, fluorescent sources including LEDs emit spectrum that is bumpy or even spiky. Those spikes fall within R, G and B and the resulting light looks white itself; but the objects or paints from which it reflects may not look the same[0]. At extremes, depending on what the paint is made of (not simply its colour!), the picture may look very different.
(Ever noticed how you may admire an amazingly vibrant flower in the field, but no photo seems to reproduce that brilliance? That’s another example of metameric failure.)
To see a work of art how it was intended to look, you should view it under the light it was created in. Unfortunately, it appears impossible to break from the shackles of LED these days. Depending on where you live, it may actually be impossible to source a tungsten filament bulb. You’d think it should be easy and worth the extra electricity expense to the management of any good gallery or museum, but apparently not.
[0] See: https://en.wikipedia.org/wiki/Metamerism_(color)#Metameric_f...