Scribus has these Colour Models:
* CMYK
* RGB
* Web Safe RGB
* Lab
* HLC
When colours are defined with HLC Colour Model, they are actually saved as a Lab Colour Model !?!?
Here is how it is saved in Scribus .sla document:
<COLOR NAME="ColourLab" SPACE="Lab" L="100" A="0" B="70"/>
<COLOR NAME="ColourHLC" SPACE="Lab" L="70" A="23.9414100327968" B="65.7784834550136"/>
Why is that?
(https://i.ibb.co/bmL2bdP/Edit-Colour-Lab.png)
(https://i.ibb.co/m4wtYwH/Edit-Colour-HLC.png)