What color is Card ?

Source Crayola® CSS3 CSS4
#9ea8bb
 
#a2add0
wild blue yonder
#a9a9a9
dark gray
#a9a9a9
darkgrey
#32506a
 
#1a4876
midnight blue
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5e6d86
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#77889f
 
#95918c
gray
#778899
light slate grey
#778899
lightslategrey
#1c2d4c
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey