What color is Button ?

Source Crayola® CSS3 CSS4
#4d473c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#2c2018
 
#000000
black
#000000
black
#000000
black
#706e5f
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#8e8673
 
#9f8170
beaver
#808080
grey
#808080
grey
#674d3b
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen