Modulating Passages in the Light -174

Discussing color shifts in the light side of objects from an impressionist and a formulaic point of view.

QUESTION:[I]n a painting, would you subtlety modulate the chroma, the hue or the temperature in the light? I’m specifically thinking about passages of flesh, but this could apply to any type of subject matter. (Examples given of Corot, Rubens, Piazetta and Van Aken)