Source Crayola® CSS3 CSS4
#819fa1
 
#979aaa
manatee
#778899
light slate grey
#778899
lightslategrey
#435753
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#627b79
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#4d5485
 
#58427c
cyber grape
#483d8b
dark slate blue
#483d8b
darkslateblue