I have noticed that the color picker never picks the same exact color in 2.8 vertex paint mode. I tried around with the different Color Management settings in the renderer panel with no luck and tried to change flat rendering as for bare color or vertex - had different behaviors but never a correct one.
What is the setting to have a 1:1 behavior between actual vertex color and viewport color?
Are there some color picker settings hidden somewhere I couldn't find? Am I doing something wrong on my own or is this feature still to be completed/fixed?