/*
  cpt-city: nr/plr/harris-plr-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/plr
*/
linear-gradient(
  0deg,
  rgb(219, 218, 204)   0.000%,
  rgb(219, 218, 204)  10.000%,
  rgb(197, 198, 196)  10.000%,
  rgb(197, 198, 196)  20.000%,
  rgb(172, 173, 187)  20.000%,
  rgb(172, 173, 187)  30.000%,
  rgb(153, 153, 180)  30.000%,
  rgb(153, 153, 180)  40.000%,
  rgb(134, 132, 171)  40.000%,
  rgb(134, 132, 171)  50.000%,
  rgb(113, 107, 159)  50.000%,
  rgb(113, 107, 159)  60.000%,
  rgb( 94,  85, 146)  60.000%,
  rgb( 94,  85, 146)  70.000%,
  rgb( 85,  74, 139)  70.000%,
  rgb( 85,  74, 139)  80.000%,
  rgb( 66,  54, 122)  80.000%,
  rgb( 66,  54, 122)  90.000%,
  rgb( 55,  40, 107)  90.000%,
  rgb( 55,  40, 107) 100.000%
);