Here is a comparison gallery of screenshots from Warner Brothers’ new 2024 4K UHD (left), the Warner Brothers’ previous 2013 Blu-ray as part of their 7-film collection (center), and an older 2008 Alliance Blu-ray release (right) of A Nightmare on Elm Street. You can right-click and view image in a new tab to do a comparison. The 4K UHD screenshots do have HDR->SDR conversion and so are not color accurate.
Buy the new Warner Brothers 4K UHD.
The 2013 Blu-ray comes from the previous 7 film collection.
The 2008 version appears to be OOP.