These two complement each other. Complementary colors are pairs of colors which, when combined in the right proportions, produce a neutral color. Peace. When placed next to each other, they create the strongest contrast and reinforce each other. Make each other more of what they are. Complete or perfect each other. How nice.
If I had to teach color theory, I would use story.
We. Started out making shoelaces. I held the string . He showed me the plaiting. We talked about what we learned as children. Many things were the same even though we grew up on different sides of this earth.
He made this. For me. It holds a rock he found at the Grand Canyon. He went without me. And learned to fly. Came back a pilot. He is like a bird. A natural feel for it.
It amazes me. The work involved in holding lives together. We have so many differences. But we also have a a lot in common. And he has beautiful hands. Always did.