Tetradic [repack] -

When used right, tetradic schemes look expensive, energetic, and masterful. When used wrong, they look like a clown exploded.

Enter the (or Double Complementary) color scheme. tetradic

If you use a pure, saturated Red (warm) next to a pure Green (cool), the line where they meet will actually hurt the eyes (vibrancy effect). When used right, tetradic schemes look expensive, energetic,