Are you saying that Black and White are not considered as colors? Besides I was not referring to the word color by definition of noun,I was using it as a verb.
But anyways…that is not my point..... as you look closely at Nami's tattoo, it is just an outline. As you look at other drawings of Nami's tattoo, that outline is filled by the color black, leaving it just blank is the oddity. :ermm:
You dont know what an outline is? It is the line which marks the outer limits of an object or figure; the exterior line or edge; contour. In this case it is the lines that form the borders of her tattoo.
http://www.onemanga.com/One_Piece/95/18/ : fourth panel, left side (Nami's tattoo design)
http://www.onemanga.com/One_Piece/97/02/ : top panel, left side (Nami's shoulders)
http://www.onemanga.com/One_Piece/285/03/ : bottom panel, right side (Nami's shoulders)
compare those 3 with this one
http://www.onemanga.com/One_Piece/223/08/ : Top panel, left side (Nami's shoulders)
Can you spot the difference now?