Source Crayola® CSS3 CSS4
#1d1a26
 
#000000
black
#000000
black
#000000
black
#3b4153
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#c5daec
 
#c5d0e6
periwinkle
#b0e0e6
powder blue
#b0e0e6
powderblue
#6a7c93
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#9babc1
 
#a2add0
wild blue yonder
#a9a9a9
dark gray
#a9a9a9
darkgrey