Of course, in the real world, gamma rays don't have any sort of coloring ... the Universal Pictures version) and the ...

But in most of the promotional photos for the series ... But despite the new alter ego, this is very much a Hulk of the same color.

But the coloring of the Hulk was inconsistent in that first issue, so writer/editor Stan Lee decided to make him green in issue #2. No in-story explanation was given, although writer Al Milgrom ...