All Ridgway plates
21 colors
Plate LII
Color Standards and Color Nomenclature, 1912
#b1b0a3
Pearl Gray
#b6b5b0
French Gray
#bebbb7
Lilac-Gray
#9fa49b
Dawn Gray
#aaacab
Cinereous
#a5a4a4
Pale Violet-Gray
#8f9891
Hathi Gray
#8b9298
Plumbeous
#8b8e8f
Light Violet-Gray
#838d7f
Storm Gray
#80868b
Deep Plumbeous
#7a7d80
Violet-Gray
#5f6e66
Castor Gray
#5e6a6c
Dark Plumbeous
#60676a
Deep Violet-Gray
#475650
Dusky Green-Gray
#455254
Blackish Plumbeous
#4c5357
Dark Violet-Gray
#354541
Blackish Green-Gray
#394647
Plumbeous-Black
#3e4746
Blackish Violet-Gray