What color is Button ?

Source Crayola® CSS3 CSS4
#647292
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#484340
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#6f665b
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#898781
 
#95918c
gray
#808080
grey
#808080
grey