One thing that really got me thinking was how colors interact with each other when you shift the whole palette. You still have a sense of how things relate to each other, but the colors are playing tricks on you.

Let's take this dribbble shot as an example. The orange Rodrigo is using isn't necessarily a straight colorwheel orange, but because he's chosen to shift the entire palette in a cold direction. This causes all the colors to change slightly, adds interest, and unifies the palette as it's own unique thing.

You can see this technique a lot, but I don't know that I've ever seen it talked about much. Firewatch is another great example. Even though the true shades in the game are mostly oranges, yellows, and reds, there is an illusion that you're getting a whole spectrum of color.

And you don't have to go all the way with this technique, but knowing it can really pump up how you see colors relating to each other. You can choose to deviate and get some really striking effects.