Colors | Foldout, De la loi du contraste simultané des couleurs (The principles of harmony and contrast of colors), Color chart, plates 6, 7, 8 | Objects | Collection of Cooper Hewitt, Smithsonian Design Museum

Source	Crayola®	CSS3	CSS4
#dbd5c2	#dbd7d2 timberwolf	#d3d3d3 light gray	#d3d3d3 lightgrey
#2c2930	#414a4c outer space	#2f4f4f dark slate gray	#2f4f4f darkslategrey
#a4a293	#95918c gray	#a9a9a9 dark gray	#a9a9a9 darkgrey
#727288	#757575 sonic silver	#708090 slate gray	#708090 slategrey
#533434	#414a4c outer space	#2f4f4f dark slate gray	#2f4f4f darkslategrey

What color is Foldout, De la loi du contraste simultané des couleurs (The principles of harmony and contrast of colors), Color chart, plates 6, 7, 8 ?