Here is an example of Tetradic color scheme in vector design.
The same methodology that we applied for the triadic color scheme, will be followed for tetradic also. First step is to choose the 4 main colors that are two pairs of opposing colors on the color wheel.
Second step is to choose one color that you would like to dominate in your design. Then try placing the other three colors on it. See if they are well balanced on your main color or are jarring to your eyes.
Starting with green, it merges with blue and doesn’t stand out that well. Yellow is settling well on blue, but red and green feel jarry to your eyes. So, the next step would be to have shades, tints or tones of the three colors green, yellow and red that go well with the background and are pleasing to the eyes. We can also try tints, shades or tones of blue(dominant color).
Here is the final scene after using the above palette designed based on the tetradic color scheme.
If you see the final result, there is a balance of warm and cool colors. It’s pleasing to our eyes. The character in the foreground stands out from the background. As said earlier, tetradic color scheme works well when we have distinct foreground and background elements.