Source Crayola® CSS3 CSS4
#6d8489
 
#757575
sonic silver
#708090
slate gray
#708090
slategrey
#556163
 
#4a646c
deep space sparkle
#696969
dim grey
#696969
dimgrey
#8d6a66
 
#8a795d
shadow
#696969
dim grey
#696969
dimgrey