How does light affect color?

The left is Lapis Lazuli during the night (S01EP25). The right is Lapis Lazuli during the day (S4EP15).





Here are her skin colors isolated.

If we take her night color pallet and shift the hue to the left,

we end up with a very similar color to her daytime color pallet.

Light seems to mostly affect hue and only minimally value. You can use this in your own art by using cooler colors for your shadows and warmer colors for your highlights.