What color is Sidewall, Willow Bough ?

Source Crayola® CSS3 CSS4
#56615f
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#8b9198
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#667685
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#3e4344
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey