CIELch → RGB: 三色

colors.html

<div background-color="0xFFCDE4">
Red
</div>

colors.py

# pip install colormath

from colormath.color_objects import LCHabColor, sRGBColor
from colormath.color_conversions import convert_color

def hexlch(l, c, h):
    rgb = convert_color(LCHabColor(l, c, h), sRGBColor).get_value_tuple()
    return ''.join([f'{min(int(x * 256), 255):02X}' for x in rgb])

for t in [0, 120, 240]:
    print(hexlch(90, 30, t))