Monitor or television screen magnified. If we shine colored light bulbs on a white wall, we can see different colors formed where the light overlaps. The light is transparent. We can still see the light from each light bulb. The colors are added together when they shine on the same area.
Color is a property of light and matter, but it is also a part of human vision.
We cannot separate the individual colors in a color mixture with our eyes. We see only a mixed color that is different from the original starting colors. So if we shine a red light and a blue light on a wall, we may see a completely different color called magenta . Basically we will see magenta as a different color. Magenta when mixing light Yellow light is made up of Green and Red light.