Source Crayola® CSS3 CSS4
#999891
 
#95918c
gray
#a9a9a9
dark gray
#a9a9a9
darkgrey
#6d7983
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#444b5d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#26232c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey