Originally Posted by
DanK
There is no option that I know of to set a color working space in Lightroom. It's native color space is Melissa, a variant of prophoto RGB. If you import a raw file, that is what it will use. It automatically translates that to make the display reasonable when you work on the image, but it doesn't actually change the color space until you export the file as a jpg or TIFF. At that point, if you are going to display on the web, specify sRGB in the export dialog. It is sticky, so you only have to do it once. for any export setting or preset.