Looking through the last few posts, it seems that different people are seeing different things when they load the file. To some it looks pretty much spot on, while others find it overexposed. Apart from Karl-Heinz though (who is using the same software as me), no-one sees the colour cast problem. This would suggest that the issue is in the software, rather than the camera or the RAW image itself.
I will explore this more tomorrow and perhaps try and get hold of some alternative programs to try. Whatever I find, I'll certainly come back and update this thread.
Some of the raw software you are using must have some default values that are not useful. They should be reset-able.
I just know about Adobe, but it puts the raw setting in a sidecar .XMP file. That .XMP file contains the Adobe Raw settings that have been selected for the image.
Here is just a random .XMP example, with only WB set, and the rest is my default values.
---- ExifTool ---- <<-----<<<< my file viewer
ExifTool Version Number : 10.10
---- File ----
File Name : 801_2097.xmp
Directory : .
File Size : 7.0 kB
File Modification Date/Time : 2016:04:06 19:24:04-05:00
File Access Date/Time : 2016:04:06 19:24:04-05:00
File Creation Date/Time : 2016:04:06 19:24:04-05:00
File Permissions : rw-rw-rw-
File Type : XMP
File Type Extension : xmp
MIME Type : application/rdf+xml
---- XMP ----
XMP Toolkit : Adobe XMP Core 5.6-c011 79.156380, 2014/05/21-23:38:37
Make : NIKON CORPORATION
Camera Model Name : NIKON D800
Orientation : Horizontal (normal)
Exif Version : 0221
Exposure Time : 1/160
Shutter Speed Value : 1/160
F Number : 5.6
Aperture Value : 5.6
Exposure Program : Manual
Sensitivity Type : 2
Exposure Compensation : 0
Max Aperture Value : 4.0
Metering Mode : Center-weighted average
Light Source : Unknown
Focal Length : 38.0 mm
Sensing Method : One-chip color area
File Source : Digital Camera
Scene Type : Directly photographed
Focal Length In 35mm Format : 38 mm
Custom Rendered : Normal
Exposure Mode : Manual
White Balance : Auto <<-----<<< This was a camera setting
Scene Capture Type : Standard
Gain Control : None
Contrast : Normal
Saturation : Normal
Sharpness : Normal
Subject Distance Range : Unknown
Digital Zoom Ratio : 1
Focal Plane X Resolution : 2048.40222167969
Focal Plane Y Resolution : 2048.40222167969
Focal Plane Resolution Unit : cm
Date/Time Original : 2016:04:06 18:20:39.10
Creator Tool : Ver.1.10
Modify Date : 2016:04:06 18:20:39.10
Create Date : 2016:04:06 18:20:39.10
Rating : 0
Metadata Date : 2016:04:06 19:24:04-05:00
Serial Number : 3046677
Lens Info : 24-120mm f/4
Lens : 24.0-120.0 mm f/4.0
Lens ID : 170
Image Number : 13412
Approximate Focus Distance : 1.68
Date Created : 2016:04:06 18:20:39.10
Not real sure about the dividing line, but above here is the camera Exif, and below here is the Adobe Raw settings.
Sidecar For Extension : NEF
Embedded XMP Digest : 2AD1AC5BA3E424E6C7C1B8C3F9C2974A
Document ID : C1D0C1EF2AF466CB304D0224A63F8492
Original Document ID : C1D0C1EF2AF466CB304D0224A63F8492
Instance ID : xmp.iid:a7898db6-d074-f748-a310-c7ae643d759a
Format : image/x-nikon-nef
Raw File Name : 801_2097.NEF
Version : 9.1.1
Process Version : 6.7
White Balance : Custom
Auto White Version : 134348800
Color Temperature : 5250 <<----<<<< These are the Adobe raw settings. WB is all that I changed
Tint : +13
Saturation : 0
Sharpness : 25
Luminance Smoothing : 0
Color Noise Reduction : 25
Vignette Amount : 0
Shadow Tint : 0
Red Hue : 0
Red Saturation : 0
Green Hue : 0
Green Saturation : 0
Blue Hue : 0
Blue Saturation : 0
Vibrance : 0
Hue Adjustment Red : 0
Hue Adjustment Orange : 0
Hue Adjustment Yellow : 0
Hue Adjustment Green : 0
Hue Adjustment Aqua : 0
Hue Adjustment Blue : 0
Hue Adjustment Purple : 0
Hue Adjustment Magenta : 0
Saturation Adjustment Red : 0
Saturation Adjustment Orange : 0
Saturation Adjustment Yellow : 0
Saturation Adjustment Green : 0
Saturation Adjustment Aqua : 0
Saturation Adjustment Blue : 0
Saturation Adjustment Purple : 0
Saturation Adjustment Magenta : 0
Luminance Adjustment Red : 0
Luminance Adjustment Orange : 0
Luminance Adjustment Yellow : 0
Luminance Adjustment Green : 0
Luminance Adjustment Aqua : 0
Luminance Adjustment Blue : 0
Luminance Adjustment Purple : 0
Luminance Adjustment Magenta : 0
Split Toning Shadow Hue : 0
Split Toning Shadow Saturation : 0
Split Toning Highlight Hue : 0
Split Toning Highlight Saturation: 0
Split Toning Balance : 0
Parametric Shadows : 0
Parametric Darks : 0
Parametric Lights : 0
Parametric Highlights : 0
Parametric Shadow Split : 25
Parametric Midtone Split : 50
Parametric Highlight Split : 75
Sharpen Radius : +1.0
Sharpen Detail : 25
Sharpen Edge Masking : 0
Post Crop Vignette Amount : 0
Grain Amount : 0
Color Noise Reduction Detail : 50
Color Noise Reduction Smoothness: 50
Lens Profile Enable : 0
Lens Manual Distortion Amount : 0
Perspective Vertical : 0
Perspective Horizontal : 0
Perspective Rotate : 0.0
Perspective Scale : 100
Perspective Aspect : 0
Perspective Upright : 0
Auto Lateral CA : 0
Exposure 2012 : 0.00
Contrast 2012 : 0
Highlights 2012 : 0
Shadows 2012 : 0
Whites 2012 : 0
Blacks 2012 : 0
Clarity 2012 : 0
Defringe Purple Amount : 0
Defringe Purple Hue Lo : 30
Defringe Purple Hue Hi : 70
Defringe Green Amount : 0
Defringe Green Hue Lo : 40
Defringe Green Hue Hi : 60
Dehaze : 0
Tone Map Strength : 0
Convert To Grayscale : False
Tone Curve Name : Medium Contrast
Tone Curve Name 2012 : Linear
Camera Profile : Adobe Standard
Camera Profile Digest : CA4F221DEBD3C272C94F7C3624CF9A18
Lens Profile Setup : LensDefaults
Has Settings : True
Has Crop : False
Already Applied : False
ISO : 200
Flash Fired : True
Flash Return : Return detected
Flash Mode : On
Flash Function : False
Flash Red Eye Mode : False
History Action : saved
History Instance ID : xmp.iid:a7898db6-d074-f748-a310-c7ae643d759a
History When : 2016:04:06 19:24:04-05:00
History Software Agent : Adobe Photoshop Camera Raw 9.1.1 (Windows)
History Changed : /metadata
Tone Curve : 0, 0*32, 22*64, 56*128, 128*192, 196*255, 255
Tone Curve Red : 0, 0*255, 255
Tone Curve Green : 0, 0*255, 255
Tone Curve Blue : 0, 0*255, 255
Tone Curve PV2012 : 0, 0*255, 255
Tone Curve PV2012 Red : 0, 0*255, 255
Tone Curve PV2012 Green : 0, 0*255, 255
Tone Curve PV2012 Blue : 0, 0*255, 255
---- Composite ----
Aperture : 5.6
Flash : On, Return detected
Shutter Speed : 1/160
Lens ID : AF-S Nikkor 24-120mm f/4G ED VR
Light Value : 11.3
Scale Factor To 35 mm Equivalent: 1.0
Circle Of Confusion : 0.030 mm
Field Of View : 50.7 deg
Focal Length : 38.0 mm (35 mm equivalent: 38.0 mm)
Hyperfocal Distance : 8.58 m