Alabama Confederate $1 Dollar Bill Green Or Blue One?

Hi everyone, Im new to the forum so this is my first post. I have just started collecting $1 dollar bills and after I told my Uncle he gave me this one out of his collection for Christmas. It was all folded up and wrinkled, but not torn up. Its just a really dirty one. I have managed to get it as straight as its going to get. Anyways, the reason why im posting about it is because I cant tell if its a blue or green variety. Its so dirty that I just cant tell. I have searched for information about the plate letter and could not find anything online. My uncle has bad eyes and so do i. But after I scanned it I started to think that it was Blue. Even when you hold it, it looks to be dirty worn out light blue. This is as good as the picture is going to get. I didnt try to change anycolor. This is scan 1 non modified. Any information would be appreciated. If it is blue then I suppose ill snag me up a green one for the cheap
Thanks alot for your time.

Thank you for your comment I Love Stamps. The reason why I posted it in this forum is because the coin side of the forum will not let me log into it. I have sent a message requesting help for this issue and am still waiting a response. In the meantime though, I went ahead and adjusted the colors so it looks like some of the notes you see for sell online. I adjusted the Temperature and saturation using windows photo gallery. I've seen and saved the pictures of 4 Blue varieties and they all have a different plate letter on them and different comptroller signatures. I suppose I need to find out why there is a Blue variety in the first place. Mabey the ink was not mixed correctly? or something along those lines.