What color is Button ?

Source Crayola® CSS3 CSS4
#3f2f2d
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#594d46
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#9e9676
 
#9f8170
beaver
#808080
grey
#808080
grey
#737064
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#872b4f
 
#9c2542
big dip o' ruby
#a52a2a
brown
#a52a2a
brown