RGB to HSV wrong in colorsys?

Question

I'm using the colorsys lib of Python:

import colorsys
colorsys.rgb_to_hsv(64, 208, 61)

output:(0.16666666666666666, 0, 208)

But this output is wrong, this is the true value using a RGB to HSV online converter: RGB to HSV

What's going on?

Answer 1

To avoid errors like this you can use colorir. It uses colorsys under the hood but allows for format specification:

>>> from colorir import sRGB
>>> sRGB(64, 208, 61).hsv(round_to=1)
HSV(118.8, 0.7, 0.8)