Color Variation - Substance Designer Nodes
You can download it from my store page here:
https://www.artstation.com/a/848540
I developed a set of Substance Designer nodes to help with procedural coloring. I have documented the development extensively on my blog:
https://www.artstation.com/benwilson/blog/yoMQ/lets-talk-color-pickers-in-substance-designer
https://www.artstation.com/benwilson/blog/ZqAq/lets-talk-color-pickers-part-2
https://www.artstation.com/benwilson/blog/eMob/lets-talk-color-pickers-part-3
And also did a talk on how the node works:
https://www.artstation.com/artwork/Dx0rrO
In these examples, all color is derived from just 2 color pickers.
The node supports complementary color schemes.
An example of using the sliders.
The tool comes with an example graph explaining how to use it and what each slider does.