"Uh. Well, I don't actually know what Karkat's blood color is. He always uses grey text, and his sign is grey. Uh, it looks like this."

Two circles, side by side, almost joined by arches above and below.

"I guess...if his blood is the same of yours, some of our friends would give him a hard time about it, so that could be a reason why he didn't advertise it. I always thought that, maybe, he was making a statement about it, and always thought that he was pretty brave to do that!"

"Uh. Were you...a Cavalreaper?" There weren't a lot of positions available to the lower classes in the fleet.