/*
  cpt-city: nr/pdr/harris-pdr-15 (cpt)

  Schemes from Moses Harris’ coluor wheels in "The Natural System
  of Colours" (1766), recreated by Nicholas Rougeux 2025

  author: Nicholas Rougeux
  copyright: CC0 1.0
  year: 2025
  url: https://phillips.shef.ac.uk/pub/cpt-city/nr/pdr
*/
linear-gradient(
  0deg,
  rgb( 55,  40, 107)   0.000%,
  rgb( 55,  40, 107)  10.000%,
  rgb( 55,  43,  98)  10.000%,
  rgb( 55,  43,  98)  20.000%,
  rgb( 54,  43,  90)  20.000%,
  rgb( 54,  43,  90)  30.000%,
  rgb( 51,  42,  83)  30.000%,
  rgb( 51,  42,  83)  40.000%,
  rgb( 51,  44,  76)  40.000%,
  rgb( 51,  44,  76)  50.000%,
  rgb( 48,  43,  70)  50.000%,
  rgb( 48,  43,  70)  60.000%,
  rgb( 49,  45,  65)  60.000%,
  rgb( 49,  45,  65)  70.000%,
  rgb( 47,  44,  58)  70.000%,
  rgb( 47,  44,  58)  80.000%,
  rgb( 47,  46,  54)  80.000%,
  rgb( 47,  46,  54)  90.000%,
  rgb( 45,  44,  48)  90.000%,
  rgb( 45,  44,  48) 100.000%
);