Source Crayola® CSS3 CSS4
#424541
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#7a7170
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#594b3a
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen