I measured the white of the two cameras with an X-rite i1Pro and used SpectraShop software to analyze the data.
You can look at attached image which contains all the graphs and colorimetric data.
But to make it short one can say that:
Nikon D800 has a CCT=K6500 and DUV=0.023 CRI Ra=92
Hasselblad H6D-100C has CCT=K5500 and
DUV=0.0114 (five times greater than Nikon and that creates the yellow-green cast) CRI Ra=67 (the worst value of all cameras I have been measuring so far).
Usually displays are calibrated to a CCT =K6500 (D65) to better match the viewing condition at K5000 (D50) which is the illuminant chosen by the press industry and it's also close to daylight value.
Trying to match the D50 viewing codition with a display calibrated at D50 gives always images that look too yellow
Previous Hasselblad camera (H5D-50) were calibrated with a K6500 white point and had a better CRI than H6D-100c.
So I really don't understand why Hasselblad has changed its approach going on a very bumpy and dangerous road leading to the abyss in term of CRI value.