What color is Button ?

Source Crayola® CSS3 CSS4
#7d7c6e
 
#757575
sonic silver
#808080
grey
#808080
grey
#030354
 
#1a4876
midnight blue
#191970
midnight blue
#191970
midnightblue
#463c3e
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#747386
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#515064
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey