The majority of modern comic reprints are dogshit. Even when they’re using “accurate” colours, they’re just slapping those colours onto glossy white paper, which those colours weren’t meant for. Also, the scans they use of the actual lineart are often atrocious, ruining the original inking.
Here’s one example from a more modern comic, Batman #505. First page is from a scanned copy of the original issue, the second’s from one of the Knightfall trade paperbacks published last decade:
Comic reprints should be handled the same way proper film restorations are: copies of the original issues scanned at high resolution, with colour correction applied to compensate for any faded inks/paper discolouration that come with age.
Here’s a video interview of comics colourist José Villarrubia, who provides more and better examples of what I’m talking about on his social media: