Source Crayola® CSS3 CSS4
#5c4742
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#72646f
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#8f919d
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#2a2a30
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey