Creating Complex Color Blends:
1- In illustrator select the polygon tool and create polygon.
2- Apply a stroke in a contrasting color.
3-Cope and past the polygon and change the scale to 25%.
5-Centeralize the small polygon in to the big one.
6- Apply a new fill and stroke color to the central polygon.
7- use the blend tool in the middle.
8- Drag the polygon to have four of them attach to each other and have a diamond shape in the middle.
9- make a cope of the diamond, change the size of the cope, and place it in the center of the first diamond.
10- Fill the diamond with contrast color, and apply a blend to it.
11- Show rulers and guides on the design and select the square in the middle.
12- Define the pattern and fill it in a new document.