What color is Drawing, Study of bridge and canal ?

Source Crayola® CSS3 CSS4
#e4e1cd
 
#efdecd
almond
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#937e67
 
#8a795d
shadow
#808080
grey
#808080
grey
#5a4c44
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#746b5f
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey