Cycles OpenEXR output way too dark when imported into After Effects When I render to OpenEXR (multilayer) in Blender 2.80 (Cycles) and then import it back into After Effects (2019) the image looks way too dark.

What it looks like in Blender 2.80:



What it looks like in After Effects:



I've tried playing around with the color management settings in Blender but it doesn't seem to make a difference. I've tried opening the EXR in other applications like IrfanView and Photoshop but that doesn't work at all (either an error or a black image).
When you export as EXR you are creating an image that is in in a linear scale. In other words you are bypassing the transformations set by the color management in blender. You would need to interpret the exr image in after effects so they it understands that is dealing with linear data.

As an alternative, do the compositing in blender directly. Import your EXR files and background and composite them together, blender's compositor always works using linear data.