Is blue blood less unsettling than red blood for a monster when the presence of blood builds suspense?
I'm outlining a story involving a dragon monster thing tearing itself apart with lots of blood and viscera as its corrupted and transformed into some sort of weird undead demon thing. The protagonist goes into its den, finds blood, then viscera, then more blood, then it finds the spooky evil version of the monster (and then, I haven't decided yet, possibly has his own evisceration transformation). A part of me wants the dragon's blood to be blue in order to show that it is different from normal red-blooded animals. The original dragon is kind of divine, blue blood might sort of show that it's something distinct from most other animals while also having that nod towards blue-blooded animals in real life. But I also feel like blue blood might kind of undermine the horror or finding it all fucked up, compared to its den being painted a dark red with normal blood.
Xenomorphs have green blood, but that's not really used in order to build suspense besides just being an environmental hazard. Blue blood feels like something I want to do for me-reasons rather than for maximum spooky reasons which I feel like I should be aiming for, if anything, I worry that it might just seem more distracting than evoking a sense of dread. It's a short story and seeing the carnage remains of the transformation is the main source of dread before things reach a climax so I don't really want to undermine its impact.
What do you think?