Sensation and Perception 9th Edition by Bruce Goldstein

Exercise 3

When you walk from outside, which is illuminated by sunlight, to inside, which is illuminated by tungsten illumination, your perception of colors remains fairly constant. But under some illuminations, such as streetlights called "sodium-vapor" lights that sometimes illuminate highways or parking lots, colors do seem to change. Why do you think color constancy would hold under some illuminations but not others?
Figure Reflectance curve of a sweater, and light reflected from the sweater when illuminated by sunlight and by tungsten light.