What color is Photograph, Photograph of the Construction of a Mass-operational House Designed by Hector Guimard (No. 11) ?

Source Crayola® CSS3 CSS4
#625f55
 
#6e5160
eggplant
#696969
dim grey
#696969
dimgrey
#7d7972
 
#757575
sonic silver
#808080
grey
#808080
grey
#2e2d2b
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey