Re: Goblins
 

Was it a Cardboard Heroes set that referred to Kobolds as "little blue fiends"? That is what first gave me the association between the wee beasties and the colour. And cobalt blue is a lovely colour, possibly my favourite blue for painting, pity the real thing is both expensive and toxic.

Re: Goblins
 

Plot synopsis: Dastardly small blue Kobolds kidnap Gnome scientists to devise fiendish new weapon of mass destruction which will poison the Gnomeland for millennia: The Kobold Bomb!