What color is Guys Hospital, 2004–2007 ?

Source Crayola® CSS3 CSS4
#2a2330
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#716d77
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#a6a0a9
 
#979aaa
manatee
#a9a9a9
dark gray
#a9a9a9
darkgrey
#4f4a53
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#5877c4
 
#5d76cb
indigo
#4682b4
steel blue
#4682b4
steelblue