When I try to use custom color in notes, e.g. for text color, Notes always change the color to the default set of color. Then in palette both colors are selected (my custom and the closest one from the predefined palette).
I have tried this on different version, different laptops but I get same results. When I simply open the text properties and compare the color on the text and in the properties dialog they simply don’t match.
Any idea what can be wrong? I’m lost 
Martin