Embroidery threads come in hundreds of colors. I pulled these complementary threads out of one of my needlework project boxes, and it was a fun challenge for me to duplicate them in 20 minutes. I have 12 colors of paint in my watercolor set, about half of which I use regularly. But I've been told the combinations of those colors can be nearly infinite - with a lot of patience and practice. Practice: I'm doing, patience: I'm still learning. Pen and watercolor, 5" x 7".