What color is Sidewall, 1750–1800 ?

Source Crayola® CSS3 CSS4
#5c5b4f
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#7f7e75
 
#757575
sonic silver
#808080
grey
#808080
grey
#403c2c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#696c73
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#49342a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey