Environment Lighting Ambient colorpicker is switched to HDR, how do I switch it back?

I somehow accidentally changed the colorpicker to HDR for “Environment Lighting - Ambient color” and it’s messing the color of every object. The color picker for everything else is the ordinary colorpicker and HDR is not checked in the camera inspetor. Does anyone know how to fix this?

I had the same issue and I wish I knew how to bring the regular color picker.
However, if you divide the number by 255 you’ll get the RGB / HSV values you need.