Source Crayola® CSS3 CSS4
#6e6682
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#453a60
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#928c9e
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey