On the Color Space homepage, there is a promise of "Never waste hours finding the perfect color palette again!" This promise is delivered.
In 2022, Color Space is my favorite color matching tool for websites. I fell in love and give up other color tools for a while.
Color Space is a simple and clear color generator, there are no sliders and a color wheel. You don't need to know anything about colors and color theory. It is enough to enter one color and the system will spew out 25 color palettes. That's it, choose what suits your project topic.