What color is Sidewall, Overlay ?

Source Crayola® CSS3 CSS4
#c4cad1
 
#cdc5c2
silver
#d3d3d3
light gray
#d3d3d3
lightgrey
#9aabc0
 
#a2add0
wild blue yonder
#a9a9a9
dark gray
#a9a9a9
darkgrey
#5e594d
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#2f2e2b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5a7eab
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue