I noticed that the RGB sliders under color pickers are in linear mode, while HSV are in sRGB. Is there a way to chose to have all in linear or in sRGB ? Just to get cohesion. Do you think it's possible with an addon ? I am asking this because if I want an albedo with a value of 0.3 for example, and a hue of 0.85 and saturation of 0.2, I have to set RGB value at 0.3 to get the good value in HSV picker, and in this one I enter Hue and Saturation. That's a bit broken to me. Normally when converting to HSV, the value is the max of red, green or blue channel. So a color in RGB (0.5 ; 0.3 ; 0.1) should be in HSV( 0.3 ; 0.8 ; 0.5) and not (0.101 ; 0.525 ; 0.735).
Edit : I just found that it can be partially solved in the ColorManagement tab by switching display device from "sRGB" to "none", with the drawback to get a raw look in the 3D rendered view...
Edit 2 : I found a simple way to correct the raw look back to sRGB by using a gamma 2.2.
I guess it's close enough for some preview. But I lose the render view presets...