@dan I have just added all my custom corporate colours to my theme colours for my project I am just about to load to the excellent Elements Hosting platform.
I use Canva colour wheel to get my complimentary colours for designing the colours I will use for that project and just wondered if something like this could be built into the theme colours in the future? Rather than a gradient of all the colours.
Nice idea, I like it! We have a few other things to do first, but I’ll keep it in mind for a future update 
Wow two ideas in a day I think I need a rest - going for a lie down!
I have always used the colour wheel to try to help my crap colour schemes I use as I’m not a professional and just thought wouldn’t it be nice to have that here and I dont have to copy and paste all the Hex codes in. I will look out for it, my commission invoice will arrive shortly!