What color is Drawing, Textile Design: Cook, 1913–18 ?

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#5957a8
 
#7851a9
royal purple
#6a5acd
slate blue
#6a5acd
slateblue
#6e8d61
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#a1afa3
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#6f7a85
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey