What color is Envelope, Envelope for Pfau Architecture, San Francisco ?

Source Crayola® CSS3 CSS4
#499089
 
#319177
illuminating emerald
#5f9ea0
cadet blue
#5f9ea0
cadetblue
#476c68
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey