Each theme provides an accent, special, and neutral palette with 6 tints and 6 shades for a total of 13 generated colors each. Some themes use preset hues for each color, and others are generated based on color-theory.

A dark mode with an invert option is provided.

A contrast checker that can also convert colors to new CSS units.
Made by oddsbird.com

Another one ! He's not much active, but there's one Hello World post.

When to choose a responsive website over Progressive Web Apps over native Apps