This is a good resource, I have seen this authors articles before on forums before too Personally, what I have been doing with color choice selection is just u

This is a good resource, I have seen this authors articles before on forums before too Personally, what I have been doing with color choice selection is just use HSL format. It makes it very easy to reason about and A/B test different colors to see what pallettes work. I have not really considered color blindness though, but per the article having color hues work in greyscale makes sense. Its like printing black/white documents VS color based docs. General rule of thumb to me is don't use more than 3 primary colors. The first starting point is to work with the existing theme's logo color choices. This vastly limits what range of colors you can use, depending on what emotions you want to evoke. Finding good color palletes is hard. Even with all the color choice palletes out there. Somedays I spend literally an entire day tweaking color choices on some projects. The critic in me cannot stand poor color choice selections. I sometimes wish I wasn't terrible at art either, telling stories is so much easier when you can make nice hand-drawn / watercolor drawings.