"Metamerism"
https://en.wikipedia.org/wiki/Metamerism_%28color%29 "Luther-Ives conditions"
http://www.dxomark.com/About/In-depth-measurements/Measurements/Color-sensitivitySMI: Sensitivity Metamerism Index
The sensitivity metamerism index (SMI) is defined in the ISO standard 17321 and describes the
ability of a camera to reproduce accurate colors. Digital processing permits changing color rendering
at will, but whether the camera can or cannot exactly and accurately reproduce the scene colors is
intrinsic to the sensor response and independent of the raw converter.
The underlying physics is that a sensor can distinguish exactly the same colors as the average human
eye, if and only if the spectral responses of the sensor can be obtained by a linear combination of
the eye cone responses. These conditions are called Luther-Ives conditions, and in practice, these
never occur. There are objects that a sensor sees as having certain colors, while the eye sees the
same objects differently, and the reverse is also true.SMI is an index quantifying this property, and is represented by a number lower than 100(negative values are possible).
A value equal to 100 is perfect color accuracy, and is only attained when Luther-Ives conditions hold
(which, as previously stated, never happens in practice). A value of 50 is the difference in color between a daylight
illuminant and an illuminant generated by fluorescent tubes, which is considered a moderate error.
http://blog.kasson.com/?p=12473 
Because the filters in the Bayer array of your camera don’t meet the Luther-Ives condition, there are some
spectra that your eyes see as matching, and the camera sees as different, and there are some spectra that
the camera sees as matching and your eyes see as different. This is called
capture metameric error, or,
less precisely, camera metamerism. No amount of post-exposure processing can fix this.
Espaço Fujifilm