What color is Collar ?

Source Crayola® CSS3 CSS4
#1b292a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#c7cfd5
 
#c5d0e6
periwinkle
#d3d3d3
light gray
#d3d3d3
lightgrey
#7d8585
 
#757575
sonic silver
#808080
grey
#808080
grey
#3f4b49
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey