Interpolate colors blue and yellow to make green (color wheel interpolation?)

[Mitzhawk]

Hello!

In the color wheel, if you combine two colors, for example blue and yellow, you would get the resulting color between them.
I am looking for a method to interpolate two colors and get a result exactly like in the color wheel. For the blue and yellow example, the result would be green.

As far as i can see, even in the material graph, the color interpolation works a bit different. (it lerps the RGB channels which gives a different color than the result from the color wheel)

I thought of a solution, to create a custom method and to specify each combination of colors manually…but i would prefer a more elegant solution.

Does unreal have any function for a interpolation between colors like in the color wheel? Or is there a way to do this programatically?

In my example i used variables of type Linear Color. Maybe is there other type of variable to get the desired solution?

[Mitzhawk]

I tried to use the interpolation formula:
c = a + (b - a) * t
where
a = color 1
b = color 2
c = resulting color
t = alpha

But i get the same result (i set the color of the text)

[KaidoomDev]

I don’t know if there’s any built in solution in the engine but based on this discussion you can try something like this however someone mentioned that for yellow and blue it’s a misconception that you would green therefore you will want to mix cyan with yellow to get green.

Is there an algorithm for color mixing that works like mixing real colors?

[Mitzhawk]

Hah, i didn’t even took in consideration the fact that programatically blue and yellow wouldn’t make green

In this case i will stick with a custom method with a preset combination of collors

Thank you