What color is Button ?

Source Crayola® CSS3 CSS4
#372b20
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#7a756b
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#575345
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#230d10
 
#000000
black
#000000
black
#000000
black
#4f2d4f
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey