What color is Button ?

Source Crayola® CSS3 CSS4
#4f7c71
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#827b68
 
#8a795d
shadow
#808080
grey
#808080
grey
#156256
 
#17806d
tropical rain forest
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#0b352c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#352e26
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey