ToHSL returning NaN

vvvv gamma bug
#1

ToHSL is returning NaN as the Hue, when the saturation is set to 0, does not happen with ToHSV.

05_Color-Application_2022.11.30-17.48.33

#2

Also returning Nan:

25_Application_2022.12.06-22.53.26
25_Application_2022.12.06-22.53.26942×584 18.7 KB