If you research the primary colors of light, they are related to what our eyes see. The primary light colors are red, green, and blue. They are called primary additive colors.
When they are mixed, they produce the primary colors of pigment.
Pigment colors are called primary subtractive colors.
Here's a link with a more scientific explanation: http://micro.magnet.fsu.edu/primer/lightandcolor/primaryhome.html
I chose not to quote the three initial paragraphs, but they are well-written and informed me well.
It had recently occurred to me that the Holy Trinity could be like the Primary Additive colors. You need all three to make light, but they are each unique. Red is very different from green, which is also different from blue. These colors all stir different feelings within me.
And, how different to have additive colors than subtractive colors.
In our world, we cannot live without the sun. We cannot create the sun, though we have artificial light.
We can mix paints and try to capture the beauty of the colors of light with the colors of pigment.
However, our palette is not true to light. When you mix all the subtractive (pigment) primary colors? You get black. We cannot artificially mix the colors and create the original colors of light.
So, in our counterfeit world, we try to replicate what God has created, but our best efforts are dark, whereas His mix of colors produces pure white light!
I don't know that I can really explain the way the Trinity functions, but I can point to the Father, the Son and the Spirit using the colors of light.
And? In pigment, we create green from yellow and blue. In light, green exists with blue and red. You cannot create it for yourself. Yellow is only a color of light with the absence of blue from the mix.
If we were to equate God the Father with Red, Jesus with Green, and the Holy Spirit with Blue, how could we tie this to the counterfeit colors of pigment versus light?
Man wants to believe that salvation is something to be had by all of our own effort, not depending on Jesus.
So in light, with the absence of the Holy Spirit, we can see yellow for the first time.
In paint, Yellow becomes our source of salvation. We mix it with what we think is the Holy Spirit and we get our self-reliant form of salvation (green).
We create our own Jesus in our pigmented world, because our color wheel is counterfeit and not true.
Our eyes have cones and when all three colors are balanced and present equally, we can see the true white light. If there is an imbalance, the light will be tinted to whichever side is out of balance.
In paint, we take out whichever colors we want until we attain the color we desire.
Also, if you try to lighten a color with black or white paint, it alters the color. Warm red becomes cool pink and loses its warmth and vibrancy. Black creates murkiness rather than simply darkening a color.
As followers of Christ, let us not look to ourselves for salvation, but to our Father who art in Heaven who sent His Son who lived, died, and rose again, and ultimately the Holy Spirit within us. With the three in balance in our lives, we will have a clear perspective of what is important, rather than trying to save ourselves with our own perfection (which is unattainable).