Split complementary color scheme (accented)
We can add to a split-complementary scheme to achive additional color. This scheme is even more vibrant, but a designer can still manage the colors quite easily. It is recommended to use the complement as the accent color (and not to overuse it), and the two other colors for hilights and additional design elements.
We can use the split-contrast scheme for palettes with very close, alike secondary colors, as well as those with more distinct hues.
Within the Paletton application use the Triade (3-color) option with the complementary color switched ON.