I think it has to do with the color management. JL explains it in this video:
https://cgcookie.mavenseed.com/lessons/color-managing-textures
Perhaps you’re doubly applying the color management when you import the texture into Blender. Maybe try changing it from Filmic to Standard. If not maybe in the N Panel of the menu where you’re at, in the uv unwrap, it could also be that the UV’s are obscuring your image? In your viewport it looks fine, so it has to do with how the UV editor is displaying it.
