I’ve been looking at the numbering system of the Prismacolor markers. Certain numbers are passed over. Here is the list of colors as well as the numbers that were not assigned to colors:

1 – Process Red
2 –
3 –
4 – Crimson Red
5 – Scarlet Lake
6 – Carmine Red
7 – Magenta
8 – Pink
9 –
10 – Blush Pink
11 – Deco Peach
12 – Light Peach
13 – Poppy Red
14 – Pale Vermilion
15 – Yellowed Orange

16 – Orange
17 – Sunburst Yellow
18 – Yellow Ochre
19 – Canary Yellow
20 –
21 – Tulip Yellow
22 –
23 – Cream
24 – Yellow Chartreuse
25 – Spring Green
26 – Light Olive Green
27 – Chartreuse
28 – Olive Green
29 –
30 –
31 – Dark Green

32 – Parrot Green
33 – Hunter Green
34 –
35 –
36 – Lime Green
37 – Aquamarine
38 – Teal Blue
39 – True Blue
40 – Copenhagen Blue
41 –
42 – Violet Blue
43 – Indigo Blue
44 – Ultramarine
45 – Navy Blue
46 – Light Agua

47 – Light Blue
48 – Light Cerulean Blue
49 –
50 – Violet
51 – Black Grape
52 –
53 – Mulberry
54 –
55 – Rhodamine
56 –
57 –
58 –
59 – Lavender
60 – Violet Mist
61 – Dark Umber
62 – Sepia
63 –
64 –
65 – Sienna Brown
66 –
67 –
68 –
69 – Goldenrod

70 – Sand
71 – Buff
72 – Eggshell
73 – Flagstone Red
74 –
75 –
76 –
77 –
78 – Brick Beige
79 – Brick White
80 – Putty
81 –
82 – Terra Cotta
83 –
84 –
85 –
86 – Cherry
87 –
88 – Dark Brown
89 – Light Walnut
90 – Walnut

91 –
92 –
93 – Burnt Ochre
94 –
95 – Light Tan
96 – Blond Wood
97 – Warm Black
98 – Black
99 – Warm Grey 10%
100 – Warm Grey 20%
101 – Warm Grey 30%
102 – Warm Grey 40%
103 – Warm Grey 50%
104 – Warm Grey 60%
105 – Warm Grey 70%

106 – Warm Grey 80%
107 – Warm Grey 90%
108 – Cool Grey 10%
109 – Cool Grey 20%
110 – Cool Grey 30%
111 – Cool Grey 40%
112 – Cool Grey 50%
113 – Cool Grey 60%
114 – Cool Grey 70%
115 – Cool Grey 80%
116 – Cool Grey 90%
117 – Metallic Silver

118 – Metallic Silver
119 – Metallic Gold
120 – Metallic Gold
121 – Clear Blender
122 – Salmon Pink
123 – Spanish Orange
124 – Limepeel
125 – Peacock Blue
126 – Cerulean Blue
127 – Imperial Violet
128 – Parma Violet
129 – Dahlia Purple

130 – Deco Orange
131 – Deco Yellow
132 – Jasmine
133 – Deco Pink
134 – Deco Blue
135 – Deco Green
136 – Deco Aqua
137 – Clay Rose
138 – Pink Rose
139 –
140 – Celadon Green
141 – Jade Green
142 – Brittany Blue

143 – Mediterranean Blue
144 – Cloud Blue
145 – Blue Slate
146 – Periwinkle
147 – Grayed Lavender
148 – Cornflower
149 – Bronze
150 – Mahogany Red
151 – Raspberry
152 – Henna
153 – Pumpkin Orange
154 – Mineral Orange

155 – French Grey 10%
156 – French Grey 20%
157 – French Grey 30%
158 – French Grey 40%
159 – French Grey 50%
160 – French Grey 60%
161 – French Grey 70%
162 – French Grey 80%
163 – French Grey 90%
164 – Peacock Green
165 – Grass Green
166 – True Green

167 – Apple Green
168 – Dark Purple
169 – Tuscan Red
170 – Peach
171 – Lilac
172 – Light Umber
173 – Light Violet
174 –
175 –
176 –
177 –
178 –
179 –
180 –
181 –
182 –
183 –
184 – Forest Green
185 – Spruce
186 – Emerald
187 – Leaf Green
188 –
189 –
190 – Tangerine