Source Crayola® CSS3 CSS4
#959d9e
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#c5cfd2
 
#c5d0e6
periwinkle
#d3d3d3
light gray
#d3d3d3
lightgrey
#43423f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey