I often use a soft green- Spearmint Omni for quilts I cannot decide what color thread to use. Be sure to lay the thread out on the quilt to see how one strand will show. I used to try to pick thread by holding the cone up to the top. Now I lay a thread out-do I want to see it? contrast. Do I want just the texture of quilting? more matching. I am always surprised at how long it takes me to pick a thread...and how little effect it makes on the quilt as a whole. Stand back...I bet you won't be able to see what color it is anyway. JMHO