/*
  cpt-city: km/blue-tan (cpt)

  Diverging Color Maps for Scientific Visualization, Kenneth
  Moreland. ISVC '09: Proceedings of the 5th International
  Symposium on Advances in Visual Computing: Part II pp, 92-103

  author: Kenneth Moreland
  copyright: Public domain
  year: 2012
  url: https://phillips.shef.ac.uk/pub/cpt-city/km
*/
linear-gradient(
  0deg,
  rgb( 55, 134, 232)   0.000%,
  rgb( 58, 138, 233)   1.562%,
  rgb( 61, 141, 234)   3.125%,
  rgb( 64, 145, 235)   4.688%,
  rgb( 67, 148, 236)   6.250%,
  rgb( 70, 152, 237)   7.812%,
  rgb( 74, 156, 237)   9.375%,
  rgb( 77, 159, 238)  10.938%,
  rgb( 81, 163, 238)  12.500%,
  rgb( 85, 166, 238)  14.062%,
  rgb( 89, 169, 239)  15.625%,
  rgb( 93, 173, 239)  17.188%,
  rgb( 98, 176, 239)  18.750%,
  rgb(102, 179, 238)  20.312%,
  rgb(107, 183, 238)  21.875%,
  rgb(112, 186, 238)  23.438%,
  rgb(117, 189, 237)  25.000%,
  rgb(123, 192, 237)  26.562%,
  rgb(128, 195, 236)  28.125%,
  rgb(134, 197, 236)  29.688%,
  rgb(140, 200, 235)  31.250%,
  rgb(146, 203, 234)  32.812%,
  rgb(152, 205, 233)  34.375%,
  rgb(159, 208, 232)  35.938%,
  rgb(165, 210, 231)  37.500%,
  rgb(172, 212, 231)  39.062%,
  rgb(179, 214, 230)  40.625%,
  rgb(186, 216, 229)  42.188%,
  rgb(193, 218, 228)  43.750%,
  rgb(201, 219, 227)  45.312%,
  rgb(208, 221, 225)  46.875%,
  rgb(216, 222, 224)  48.438%,
  rgb(223, 223, 223)  50.000%,
  rgb(224, 223, 216)  51.562%,
  rgb(225, 223, 208)  53.125%,
  rgb(226, 222, 201)  54.688%,
  rgb(226, 221, 193)  56.250%,
  rgb(227, 220, 185)  57.812%,
  rgb(227, 219, 178)  59.375%,
  rgb(227, 217, 170)  60.938%,
  rgb(227, 215, 163)  62.500%,
  rgb(226, 213, 155)  64.062%,
  rgb(226, 211, 148)  65.625%,
  rgb(225, 209, 140)  67.188%,
  rgb(224, 206, 133)  68.750%,
  rgb(223, 203, 126)  70.312%,
  rgb(222, 200, 119)  71.875%,
  rgb(221, 197, 112)  73.438%,
  rgb(219, 194, 105)  75.000%,
  rgb(217, 190,  98)  76.562%,
  rgb(215, 187,  92)  78.125%,
  rgb(213, 183,  86)  79.688%,
  rgb(211, 179,  80)  81.250%,
  rgb(209, 175,  74)  82.812%,
  rgb(206, 171,  68)  84.375%,
  rgb(203, 167,  63)  85.938%,
  rgb(200, 162,  58)  87.500%,
  rgb(197, 158,  53)  89.062%,
  rgb(194, 153,  48)  90.625%,
  rgb(191, 149,  43)  92.188%,
  rgb(188, 144,  39)  93.750%,
  rgb(184, 140,  35)  95.312%,
  rgb(180, 135,  31)  96.875%,
  rgb(177, 130,  27)  98.438%,
  rgb(173, 125,  24) 100.000%
);