Fu Xi and King Wen

Fu Xi 's complementary arrangement and King Wen's pairs coincide on the 8 x 8 square

Wen's pairs can be said to fall into two categories: 8 pairs that are complementary, and 24 pairs that are figurate inverses.

The pairs of the first kind are found along both of the major diagonals which reflect across each other.  The pairs of the second kind are found reflected across the vertical axis of the diagram.

The colors indicate the line-composition of the figures: 

Black: 6 YANG 0 YIN

Indigo: 5 YANG 1 YIN

Blue: 4 YANG 2 YIN

Green: 3 YANG 3 YIN

Yellow: 2 YANG 4 YIN

Orange: 1 YANG 5 YIN

Red: 0 YANG 6 YIN