Source Crayola® CSS3 CSS4
#180f3c
 
#000000
black
#191970
midnight blue
#191970
midnightblue
#232832
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#4e536b
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey