Full-Color Comics?

Hey all -

I loved ElfQuest when I was younger, and now I'l trying to track down
some of my favorite issues. I remember reading Captives of Blue
Mountain in graphic novel format in full color at my local library. In
fact, my library had all the graphic novels in full color, and the
year couldn't have been later than 1992.  Are those availible for sale
anywhere? I can find b/w versions of those, but no color. Any info
would be greatly appreciated!