Have a look at another useful pack for Substance Designer.
The HCL Utilities pack by Etienne Bednarz includes a number of tools for Substance Designer that will help you set up colors in the HCL color space
"The HCL color space lets you keep consistency in your Luminance while working on the Hue or Chrominance, thus keeping consistency on the color perception of your textures, and the final lighting of your scene," noted the author.
Seven nodes (.sbsar) included:
You can learn more and get the pack for free on Gumroad.