this may indicate that those ranges are out of gamut for the current color system.
for example, Rec. 2020 (https://en.m.wikipedia.org/wiki/Rec._2020) can represent a far wider range of color than sRGB (https://en.m.wikipedia.org/wiki/SRGB).
The R,G, and B sliders are generally referenced to the primaries of the color system in use, but the LCH are referenced to CIE XYZ, so it is common for some ranges of those sliders to be out of gamut.
Whereas RGB is generally thought of as the volume contained in a cube with orthogonal axes R,G, and B, the volume that LCH points into is a more complex shape, so some values of L, C and H are not valid. When L is 0, the only valid values for CH are 0 (there’s only one black), which you can also think of as being on the outer corner of that volume.
I came to the opposite conclusion after living in Atlanta for a few years.
My experience was that Atlanta drivers are very accustomed to high traffic, so will do things like drive closely packed af 85mph on the freeway, assertively take advantage of gaps or entry opportunities, and not wait around for you to turn and will swerve around you.
But they have the experience to do it fairly adeptly, and once you get used to it, there is very little friction outside of congestion. People use signals, anticipate movements and coordinate to ensure flow, and seem to generally get the “game theory” aspect of making traffic work better.
They also aren’t assholes like in the northeast - if you put your blinker on they’ll let you into the fast lane, instead of speeding up to block you. There’s very little honking or aggressive behavior. I’ve rarely witnessed road rage.
Of course some people suck, but it’s a minority.