What color is Panel ?

Source Crayola® CSS3 CSS4
#8c726c
 
#8a795d
shadow
#808080
grey
#808080
grey
#342828
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5a4443
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen