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The name is explicit. There isn’t the intensity variations due to the place it takes, but it’s easy to do.

from math import *
from cmath import *
from kandinsky import *
def chroma():
  r=255
  g=0
  b=0
  for j in range(111):
    a=int((j*677)/111)
    for i in range(2*a):
      e=int((j*cos(i*(pi/a))+160).real)
      c=int((j*sin(i*(pi/a))+111).real)
      for k in range(3):
        if k==0:
          z=104.5+207*1j
        elif k==1:
          z=271+111*1j
        else:
          z=104.5+15*1j
        p=phase((e+c*1j-160-111*1j)/(z-160-111*1j))
        if p<0:
          p=2*pi+p
        d=int((765*p)/pi)
        if d<=255:
          if k==0:
            r=d
          elif k==1:
            g=d
          else:
            b=d
        elif d>255 and d<=765:
          if k==0:
            r=255
          elif k==1:
            g=255
          else:
            b=255
        elif d>765 and d<=1020:
          if k==0:
            r=1020-d
          elif k==1:
            g=1020-d
          else:
            b=1020-d
        else:
          if k==0:
            r=0
          elif k==1:
            g=0
          else:
            b=0
      set_pixel(e,c,color(r,g,b))