Why red light is so complicated and slow

[coilbook]

Hi We need different color lights for cars' headlights. Seems like octane renders all light color like blue yellow green very fast except red it usually stays noisier than other color lights and we can never get red light like if we had red flashlight it is either too red or too orange
Maybe anyone can help or it is just the way light wave is.

this is supposed to be an educational cartoon where children can say a color just looking at the light but red light looks too orange and orange light looks orange
Thank you

[HHbomb]

I'm not sure that for the purple one the light is purple...

[profbetis]

In your render settings put the setting "Saturation to White" to about 0.1 or 0.2, it should blow out over-saturated colors to white instead of over-saturating them. Alternatively, you can lower the saturation of your light to about 95% full saturation which should let it blow out naturally.

[coilbook]

In your render settings put the setting "Saturation to White" to about 0.1 or 0.2, it should blow out over-saturated colors to white instead of over-saturating them. Alternatively, you can lower the saturation of your light to about 95% full saturation which should let it blow out naturally.

Thank you!