Source Crayola® CSS3 CSS4
#534b4a
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey
#796b63
 
#757575
sonic silver
#696969
dim grey
#696969
dimgrey
#2f2c35
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey