What color is Button ?

Source Crayola® CSS3 CSS4
#5b5146
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#3a3128
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#797468
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#c6c0b4
 
#cdc5c2
silver
#c0c0c0
silver
#c0c0c0
silver