What color is Drawing, Lamp Designs in Colored Glass, for Kovacs ?

Source Crayola® CSS3 CSS4
#74726e
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#504d4a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey