I know that everybodies monitor is calibrated differently but here are the various mixtures I have been describing. They all contain enough white to open up the note so you can tell what it looks like. Above is ultramarine and cadmium yellow. Every different manufacturers cadmium yellow is a different shade too, so there is another variable. Theses are all RGH colors in these examples. You will need to make your own samples if you want to study this. Below is ultramarine plus yellow ocher.
Below is pthalo blue plus cad yellow.
And pthalo plus ocher.
Then black plus cad. yellow.
And then black plus ochre.
Here is cobalt blue plus cad. yellow.
and cobalt plus yellow ochre.
And lastly I mixed a bright pink into a pthalo green.
I make and keep a tube of pink for subduing greens. You could use flesh color or cook up your own. Mine is very bright, but it is the opposite of a strong green as one makes out of pthalo. Williamsburg makes a color called Persian Rose that works very nicely. I use this and all my other reds to further modify the greens I have shown you above. By doing that I can get LOTS of different combination's. Notice the pink to green example gives a warm neutral in the middle.