What color is Set of Four Buttons Buttons ?

Source Crayola® CSS3 CSS4
#c1b9b6
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver
#492a35
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#715b59
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey