What color is Greeting Card, LOVE, Envelope and postcard commemorating first day of issue of postage stamp designed by Robert Indiana ?

Source Crayola® CSS3 CSS4
#d12d2a
 
#cd4a4c
mahogany
#dc143c
crimson
#dc143c
crimson
#7b9fb5
 
#979aaa
manatee
#5f9ea0
cadet blue
#5f9ea0
cadetblue
#568f4d
 
#85754e
gold fusion
#2e8b57
sea green
#2e8b57
seagreen
#dcd4cb
 
#dbd7d2
timberwolf
#d3d3d3
light gray
#d3d3d3
lightgrey
#656e9b
 
#7851a9
royal purple
#708090
slate gray
#708090
slategrey