What color is Column, Caryatid ?

Source Crayola® CSS3 CSS4
#291b0f
 
#000000
black
#000000
black
#000000
black
#50422f
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#86847b
 
#757575
sonic silver
#808080
grey
#808080
grey