Source Crayola® CSS3 CSS4
#89887e
 
#95918c
gray
#808080
grey
#808080
grey
#555c5d
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#6c7b7f
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey