What color is Button ?

Source Crayola® CSS3 CSS4
#423d36
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#635946
 
#6e5160
eggplant
#556b2f
dark olive green
#556b2f
darkolivegreen
#7d7868
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey