Source Crayola® CSS3 CSS4
#56a3b9
 
#6699cc
blue gray
#5f9ea0
cadet blue
#5f9ea0
cadetblue
#47423e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#4c6873
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#85949a
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey