Looks like I’ve opened a can of worms here.. Sorry, this may be a dead end (or not) in which case sorry to bother you.
I went to the link you included. The only thing I changed was “round – yes” to turn the colour wheel on. Clicking on the value, the wheel appeared – with a round indicator just as you have it, suggesting that moving that point around would change the selected colour – it does not. Meanwhile there are 4 sliders to the right – two of which are almost invisible due to being white. No amount of moving the point in the wheel around will change the actual selected colour. The slider 2nd from the right, if put half way up, allows that point in the wheel to work but produces a horrible grey in the wheel itself. There seems to be no combination that would let you control colour and saturation with the wheel. i.e. No good.
I looked at other Angular stuff….
This example from Chis Woodle looks nice but offers no saturation control of intensity in the wheel at all. https://codepen.io/chriswoodle/pen/MEbqbj
At first glance it seems that no-none in the Angular school of thought has managed a truly useful WHEEL for selecting colour (hue) AND intensity by ordinary folk.
It IS possible to do this in a wheel, moving the pointer in and out, one version who’s demo has sadly disappeared shows the outer edge of the wheel black and the centre white.
I appreciate this is well away from a simple Angular component but felt the need to show how I feel a colour wheel should be.