What color is Poster, Ein Sommernacht Traum ?

Source Crayola® CSS3 CSS4
#7da4c1
 
#6699cc
blue gray
#5f9ea0
cadet blue
#5f9ea0
cadetblue
#cfd8e8
 
#c5d0e6
periwinkle
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#558091
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#283432
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#3b5a5e
 
#4a646c
deep space sparkle
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey