If it helps overcome you color intimidation issue, don't think of the colors as "colors", just think "value". Make 2 piles from your fabrics, one lighter pile, one darker pile. It doesn't matter what colors you put with another, just as long as you can squint and see the difference in value; light window & door on a dark house, or vise versa. The roof will be next to the background, and I would think any color that is medium color value or darker would stand out against a light sky. Do I sound bossy? I'm sorry. Hope it helps you relax with colors. Fear Not!