Hi @robhixkg,
A alternative: it looks like you are using straight red, green, and blue. Since that is the case, you could use the rgb() function instead of hsv(). Since that is additive, it will mix. If all 3 “hands” overlapped, you’d easily get white, which otherwise you’d have to check for in an hsv blend.
On the hsv path, the thing that you are probably running in to is that the hsv used isn’t adjusted for perception. Green will dominate, so a yellow/orange actually has a lot less green in it. Take a look at this thread for some ways to transform a hue into something that favors orange/yellow a bit more:
You can also hop over to the pattern site and grab “Utility: perceptual hue” for some code!
Either way, I would love to see the result and your clock!