Color Wheel mini quilt, has link to pattern with 16 instead of 12 wedges. From In Color Order
The Ultimate Color Combinations Cheat Sheet
A Triad is a combination of 3 colors that are equidistant from each other on the color circle. It produces a high contrast effect while preserving ’harmony.’ Such a composition looks vibrant even when you use pale and unsaturated colours.
Easy Dresden Quilting Tutorial - Color Cog Mini Quilt