Source Crayola® CSS3 CSS4
#727177
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#3f404b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#8c92a7
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey