What color is Button ?

Source Crayola® CSS3 CSS4
#7f796a
 
#757575
sonic silver
#808080
grey
#808080
grey
#2f2923
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#103125
 
#000000
black
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#554d40
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#1d5846
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey