Source Crayola® CSS3 CSS4
#c1d3db
 
#c5d0e6
periwinkle
#d3d3d3
light gray
#d3d3d3
lightgrey
#708592
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#92a8b4
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#50636f
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey