What color is Sidewall (Netherlands) ?

Source Crayola® CSS3 CSS4
#554b36
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#372f2c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey