# cpt-city: jmn/jmn-d50 (cpt)
#
# A colourmap with monotonic luminance for simultaneous colour and
# grey-scale publications.
#
# J. McNames, "An effective color scale for simultaneous color and
# gray-scale publications," in IEEE Signal Processing Magazine,
# vol. 23, no. 1, pp. 82-96, Jan. 2006,
#
# author: James McNames
# copyright: Free to use
# year: 2009
# url: https://phillips.shef.ac.uk/pub/cpt-city/jmn
 0 255/255/255   1 255/255/255
 1 251/244/252   2 251/244/252
 2 247/234/251   3 247/234/251
 3 241/224/251   4 241/224/251
 4 234/216/252   5 234/216/252
 5 225/208/252   6 225/208/252
 6 216/201/253   7 216/201/253
 7 205/195/254   8 205/195/254
 8 193/191/254   9 193/191/254
 9 180/189/254  10 180/189/254
10 167/188/253  11 167/188/253
11 153/188/251  12 153/188/251
12 139/190/247  13 139/190/247
13 126/193/242  14 126/193/242
14 112/198/235  15 112/198/235
15 100/203/226  16 100/203/226
16  88/210/216  17  88/210/216
17  78/216/203  18  78/216/203
18  70/223/189  19  70/223/189
19  63/230/173  20  63/230/173
20  58/237/156  21  58/237/156
21  56/243/137  22  56/243/137
22  56/247/117  23  56/247/117
23   58/250/97  24   58/250/97
24   63/250/76  25   63/250/76
25   71/245/58  26   71/245/58
26   81/234/42  27   81/234/42
27   91/221/30  28   91/221/30
28  101/206/19  29  101/206/19
29  109/190/12  30  109/190/12
30   116/173/6  31   116/173/6
31   122/156/2  32   122/156/2
32   125/138/0  33   125/138/0
33   127/121/0  34   127/121/0
34   127/104/1  35   127/104/1
35    126/88/3  36    126/88/3
36    122/74/6  37    122/74/6
37    117/60/9  38    117/60/9
38   110/48/13  39   110/48/13
39   102/37/16  40   102/37/16
40    93/27/19  41    93/27/19
41    83/20/21  42    83/20/21
42    72/13/23  43    72/13/23
43     61/8/23  44     61/8/23
44     49/5/22  45     49/5/22
45     38/2/21  46     38/2/21
46     27/1/17  47     27/1/17
47     17/0/13  48     17/0/13
48       8/0/7  49       8/0/7
49       0/0/0  50       0/0/0