What color is Roundel, Knights confessing their Christianity to Emperor Maxentius, 15th century ?

Source Crayola® CSS3 CSS4
#787352
 
#85754e
gold fusion
#696969
dim grey
#696969
dimgrey
#ada278
 
#bab86c
olive green
#bdb76b
dark khaki
#bdb76b
darkkhaki
#493c21
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#6f5a31
 
#714b23
raw umber
#556b2f
dark olive green
#556b2f
darkolivegreen
#2a281c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey