What color is Photograph, Photograph of the Construction of a Mass-operational House Designed by Hector Guimard (No. 44) ?

Source Crayola® CSS3 CSS4
#555248
 
#414a4c
outer space
#556b2f
dark olive green
#556b2f
darkolivegreen
#353532
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#e5dfce
 
#efdecd
almond
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#736d5f
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey