I did not take the pen out of the shrink wrap, so I am unsure of the ink color. I checked several websites and done mentioned the color ink. I apologize.
My daughter has a different Jack Skellington Kooky pen and she said it writes BLACK, but she has other Kooky Pens that write BLUE. She has over 30 Kooky pens and they all write different ink colors, so I can't guarantee what color this one writes.