What color is Drawing, Studies of stackable cont ?

Source Crayola® CSS3 CSS4
#999588
 
#95918c
gray
#808080
grey
#808080
grey
#3e3930
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#716c62
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey