[Samsung Galaxy Note 8 Questions and Answers] Kamikaze_Ice:
Hmm. Is the viewing angle tint worse to whites/greys notably more pronounced than it is with secondary colors? Typically this type of color shift is seen in whites/greys and near white colors, so if it's just as visible or more so with colors then you indeed have an issue that can hopefully be controlled with some built in options. I'm assuming you've checked your apps/widgets/services for anything suspicious.

I don't suppose you have something like FLUX /CF.Lumen/Twilight/etc installed or running, right? I think I had an exposed module or perhaps something I did with busybox on my HTC Inspire.

Try resetting the adaptive and auto brightness behavior history. (Settings > Display > Auto brightness: Click the name and NOT the toggle button.)

Also, double check that you have the Blue Light Filter disabled

AND

click the name to check that it's not scheduled to turn it's self on. (Settings > Display > Blue Light Filter > Turn on as scheduled = OFF)

How does grayscale mode look? (Settings > Accessibility > Vision > Grayscale on/off). Note: Grayscale mode should be slightly "cool". This actually disables the picture mode effects (Adaptive/Cinema/Photo/Basic).

There is also the "Color Adjustment" option in there too (I've never had a reason to use it, to lazy to find out what it does. I'm assuming its to tweak for color blindness)

There is a(nother?) color blindness setting in the Developer Options. Looks like general presets to adjust the display's gamut to better match your biological native gamut (not strictly color "blindness". You unwillingly sacrifice part of the color spectrum an average human sees, but you gain parts at the ends ala ultra violet/infrared).

How about Negative Colors, are they really inverted? (compare negative color mode to a screenshot, or a picture from another camera, and use Paint.net/GIMP are free and both can invert color).

Contacts, glasses, screen protectors and even the light around you will effect your perception of color from the screen.

It's possible that the polarizing filter, oleophobic coating (anti-fingerprint) and/or anti-glare coating could have been applied from the wrong direction. What I mean is something like the direction when cutting with the grain vs cutting against the grain.

Sometimes you can get get an idea of how much if any of this makes a difference with looking for this this through cameras or polarized glasses (rainbow effects, and the shape(s) of the rainbow, and uniformity/thickness/shape/how visible they are).

If nothing else, you could try setting the screen for max brightness and make it show a PURE 100% white screen for a few hours. A slightly better option might be to leave some animated colored noise running for a few hours. As long as it's the whole screen without any buttons or toolbars you won't get burn in (every subpixel will age evenly).

Don't let the auto dimming kick in--this is an OLED display "feature" and not to be confused with the auto brightness option. The Smart Stay option is useful for this (Settings > Advanced Features > Smart Stay: ON)

The point of this is just get out of the "break in" period. I wouldn't try to calibrate an HDTV OLED from LG unless at LEAST 200 hours of screen-on time. This Samsung panel is way better than those, and does not get nearly has hot. This DID help viewing angle white balance temperature on my LG E6 when comparing my notes from 2500 hours ago of screen on time (screen is more uniform instead of being split greenish on top and cooler on bottom quarter with an oval area that is unchanged from edge to edge (shape of affected areas that were tinted looked like a widescreen vignette centered in the middle)

For reference, On my Note 8 I can see tinting in whites/greys after ~8-16° or more in viewing angle and colors need double that before it starts tinting.