Source Crayola® CSS3 CSS4
#55544c
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#575f67
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#aca9a0
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey