Converts RGB to CIE xyY for Philips Hue
from hue_color_converter import Converter
converter = Converter() # optionally provide device id or "A", "B", "C" color gamut for more accurate colors
(x, y), Y = converter.hex_to_xyy("ff00ff")
# calculated brightness is on the scale of 0-1
converter.xyy_to_hex((0.3209, 0.1541), Y=0.2848)
Click here to see which color gamuts are supported for your device.
pip install hue-color-converter