What color is Button ?

Source Crayola® CSS3 CSS4
#575249
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#312d29
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#878372
 
#757575
sonic silver
#808080
grey
#808080
grey
#e9da8f
 
#f0e891
green yellow
#f0e68c
khaki
#f0e68c
khaki