Chromatic adaptation refers to the ability of our visual system to adjust to changes in lighting conditions, helping to keep the perceived colour of objects relatively stable.
Chromatic adaptation helps us perceive the colours of familiar objects as constant, even under widely varying lighting conditions.
Chromatic adaption means an observed colour stimulus such as a white surface is judged to remain white even as other projected or reflected colours fall upon it.
Chromatic adaption often becomes noticeable when comparing photographs of the same subject in changing lighting conditions.
Cameras try to mimic chromatic adaption through white balance adjustments, but differences in lighting conditions can still result in two photos of the same subject appearing different in colour.