Every
color of the wheel is a "tone". Contiguous wheel tones, that
share the same sub-tones (e.g. red,
orange red, orange) are harmonic.
Opposed
wheel tones (e.g.
red
and
green ) are
complementary, or
opposed tones. Used together, they produce contrast.
The
combinations of colors placed at the vertices of the triangle,
that involve three tones equally distant (e.g. red,
yellow
and blue
) are combined in a vivid and contrasting mode. The triangle
can be rotated to find other combinations.