Source Crayola® CSS3 CSS4
#423a34
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#989085
 
#95918c
gray
#808080
grey
#808080
grey
#746b62
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey