I wrote this a few years ago when I was playing around with color math-- I'm not sure I could explain it all at this point, but I made some tweaks that let it work with the latest version of colormath.

random_sv.py

import svgwrite
import random

from colormath.color_objects import sRGBColor, HSVColor
from colormath.color_conversions import convert_color
from collections import deque
from copy import copy

BOARD_WIDTH = "24in"
BOARD_HEIGHT = "12in"
BOARD_SIZE = (BOARD_WIDTH, BOARD_HEIGHT)
WHITE = sRGBColor(1,1,1)

BLACK = sRGBColor(0,0,0)


r = lambda: random.randint(0, 255)

def color_for_hex(hexcode):
    color = sRGBColor.new_from_rgb_hex(hexcode)
    return color


def random_color():
    hexcode = ('#%02X%02X%02X' % (r(), r(), r()))
    print hexcode
    return color_for_hex(hexcode)


def color_distance(first,second):
    return first.delta_e(second)


def random_ish_color(previous_color=None):
    rc = random_color()

    if not previous_color:
        return rc

    while (color_distance(rc, previous_color) < 10 and rc.delta_e(BLACK) < 50):
        rc = random_color()
    return rc


def triads(color):
    color_as_hex = color.get_rgb_hex()
    rgb = deque([color_as_hex[1:3], color_as_hex[3:5], color_as_hex[5:7]])
    rgb.rotate()
    triad1 = color_for_hex('#' + ''.join(copy(rgb)))
    rgb.rotate()
    triad2 = color_for_hex('#' + ''.join(copy(rgb)))

    return (triad1, triad2)


def HueShift(h, s):
    h += s
    while (h >= 360.0):
        h -= 360.0
    while (h < 0.0):
        h += 360.0
    return h


def complement(rgb):
    hsv = convert_color(rgb, HSVColor)
    new_h = HueShift(hsv.hsv_h, 180)
    hsv.hsv_h = new_h

    new_rgb = hsv.convert_to('rgb')

    return new_rgb



def draw_board(dwg):
    for y in range(12):
        starting_color = random_color()
        hsv = convert_color(starting_color, HSVColor)
        for x in range(24):
            saturation = random.random()
            value = random.random()

            hsv.hsv_s = saturation
            hsv.hsv_v =value

            as_rgb = convert_color(hsv, sRGBColor)
       
            square = dwg.rect(insert=(x, y),
                              size=(1, 1),
                              fill=as_rgb.get_rgb_hex())
            dwg.add(square)


def main():
    dwg = svgwrite.Drawing('banner.svg', size=BOARD_SIZE)
    dwg.viewbox(0, 0, 24, 12)

    # set background
    dwg.add(dwg.rect(size=('100%', '100%'), fill="white"))
    draw_board(dwg)
    dwg.save()

if __name__ == '__main__':
    main()