Can you change the hueness and gradient of a circle

Question

Changing parameters

Answer 1

I assume you are stepping to radial-gradient().. if yes then this can help you!

https://developer.mozilla.org/en-US/docs/Web/CSS/radial-gradient()

Answer 2

Can you use hsl color (hue, saturation,lightness) for hueness
values: hue-0 to 360
saturation- 100% to 0
lightness-0 to 100%

Eg: in css
background-color:hsl(120,45%,49%);