Smoky and gray series are in the second row of catalogs. Of course, they may both be in the same row or in separate but consecutive rows; It all depends on the catalog design of each brand. The number after the dot in the gray series is one, and before the dot we see the number from one to ten. The numbers eleven and twelve are superplatinum colors. The predominant pigment in the gray and smoky series is the blue pigment, so it is used to eliminate yellowish strands of hair.