When you learn about color mixing in kindergarten, like 'red+blue=purple' or 'yellow+blue=green', that doesn't really mean anything about the colors themselves, or the things that are making the colors, it's teaching about a quirk of the human eye, that two colors at once will light up your photoreceptors in the same way that another color would. But I mean, your body has temperature sensors that detect 'cold' and 'warm', and when both of those sensors light up at once, you feel 'hot', but I wouldn't say that 'cold+warm=hot' in the same way you might say 'red+blue=purple'.
What would it be like to perceive a red+blue thing as simultaneously red and blue, and not as purple?