Here’s a link to the quiz (as per screenshot below).
And here’s a link to a related video that explains how how shifts in Cyan, Magenta, Yellow, and Black can refine a hue’s character.
These are concepts that don’t come naturally to me (I’ve gotta think about the rules of colour opposites every time !) - so I found this quite fascinating, and challenging.
Thanks for the quiz John
But what tools should you use to reproduce the effect with PhotoLab?
Pascal
I’d try HSL and turning the outer ring. The ranges (e.g. for green) set by DxO might need to be modified for such a test though.
Unfortunately not 
Pascal
I don’t understand, please elaborate…
I used the Tint mask local adjustment (exposure and colour wheel), selecting just the right patch…
Before…
After…
Hi Joanna
Je ne suis pas aussi habile
Interventions on cursors are not visible;
Saturation, Vibrancy, …
Pascal
I don’t understand how you did that, Joanna (?!) - Would you please elaborate.
John
I started by taking a screenshot of the web page and then opened it in PL - see the first image.
Then I selected the local adjustments palette (see second image), selected the Tint Mask tool and clicked on the righthand patch with the pipette. You can see the selected range on the strip.
Then I used the white circle on the Colour Wheel and swung the outer handle around until the colour of the selected patch matched (as closely as possible) the left patch. I also adjusted the exposure tool slightly to get as close a match as possible.
it’s not perfect but, with a bit more time and effort…
Ahhhhh - I would never have thought of that … Thanks, Joanna.
Ok, now please do it all over again without the Tint Mask for those who do not have Film Pack 
I guess we could just use the HSL tool.
Also just sample the patch you are trying to match and then adjust the RBG values of the other patch to match. Not on my PC right now so can’t test.
Excuse the phrasing but, if you are daft enough to not have FilmPack, you’re just making work for yourself 
Seriously though, there are “essential” tools that have nothing to do with film emulations and everything to do with better tonal control, like the Fine Contrast sliders.
You’re excused 
Well, I don’t have Film Pack as the tools they provide that I would use are almost non-existent. I try to keep my photos as realistic as possible and the standard tools in PL are more than adequate for my use. Images can be over processed at times and can look unnatural so I take the minimalist approach.
Horses for courses
Almost but not totally. IMHO, it is worth every cent, if only for the four Fine Contrast sliders.
If it’s natural you want, then you really need to reconsider just how much benefit those four sliders can bring to an image without making it look over-processed.
Take this section of a contre jour image with very deep shadows…
Yes, there are dark areas, which should remain dark but the human eye could see a lot more detail that just lifts the quality of the image…
Take a good look into the darker areas, which still look dark but now offer glimpses of exquisite detail that changes them from black blobs to sculpted rocks. The only other way to achieve this with FP would be to use sharpening, which is global and affects all tones, which can then quickly look over sharpened in tones that were already sufficiently sharp.
And, when it comes to printing, which we do to large sizes like A2 or A1, I have several discerning photographers convinced that I have used a 5"x4" camera, such is the natural looking detail.
Not forgetting the Luminosity and Tint local adjustment masks, which are far more accurate in their selection than tools like the Control Line or Point.
Thanks @Joanna, I will take a closer look and maybe do a trial of FP.
The detail certainly does look appealing
That was fun actually. Interestingly I’m fairly colourlbind in the reds and a bit of green, but I managed to match all the swatches between 95% and 98%.
