What color is Drawing, Study for an Exhibition Annoucement ?

Source Crayola® CSS3 CSS4
#7682bb
 
#7366bd
blue violet
#778899
light slate grey
#778899
lightslategrey
#b46731
 
#b4674d
brown
#a0522d
sienna
#a0522d
sienna
#544a4b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey