# cpt-city: jmn/jmn-c64 (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   1 252/246/253
 1 252/246/253   2 249/238/252
 2 249/238/252   3 245/231/251
 3 245/231/251   4 240/223/251
 4 240/223/251   5 235/217/251
 5 235/217/251   6 228/210/252
 6 228/210/252   7 221/205/253
 7 221/205/253   8 213/200/253
 8 213/200/253   9 205/195/254
 9 205/195/254  10 196/192/254
10 196/192/254  11 186/190/254
11 186/190/254  12 176/188/254
12 176/188/254  13 165/188/253
13 165/188/253  14 155/188/251
14 155/188/251  15 144/189/248
15 144/189/248  16 133/191/245
16 133/191/245  17 123/194/240
17 123/194/240  18 112/198/235
18 112/198/235  19 103/202/228
19 103/202/228  20  93/207/221
20  93/207/221  21  85/212/212
21  85/212/212  22  77/217/202
22  77/217/202  23  71/223/191
23  71/223/191  24  65/228/179
24  65/228/179  25  61/233/166
25  61/233/166  26  58/238/152
26  58/238/152  27  56/243/137
27  56/243/137  28  55/246/122
28  55/246/122  29  56/249/106
29  56/249/106  30   59/250/90
30   59/250/90  31   63/250/74
31   63/250/74  32   70/246/59
32   70/246/59  33   78/238/47
33   78/238/47  34   86/229/36
34   86/229/36  35   93/218/27
35   93/218/27  36  101/206/19
36  101/206/19  37  107/194/13
37  107/194/13  38   113/181/8
38   113/181/8  39   118/167/4
39   118/167/4  40   122/154/2
40   122/154/2  41   125/140/0
41   125/140/0  42   127/127/0
42   127/127/0  43   127/114/0
43   127/114/0  44   127/101/1
44   127/101/1  45    126/88/3
45    126/88/3  46    123/77/5
46    123/77/5  47    119/66/8
47    119/66/8  48   115/56/10
48   115/56/10  49   109/46/13
49   109/46/13  50   103/38/16
50   103/38/16  51    96/30/18
51    96/30/18  52    88/24/20
52    88/24/20  53    80/18/22
53    80/18/22  54    72/13/23
54    72/13/23  55     63/9/23
55     63/9/23  56     54/6/23
56     54/6/23  57     46/4/22
57     46/4/22  58     37/2/20
58     37/2/20  59     29/1/18
59     29/1/18  60     21/0/14
60     21/0/14  61     13/0/10
61     13/0/10  62       6/0/5
62       6/0/5  63       0/0/0