I use a very light grey Rasant 120 thread. The reels of thread are 1000 metres. It is a wonderful thread and I have never had a problem with it. When I was manufacturing I used to buy all my threads by the box as they had to be a perfect match. So I have plenty of colours on hand. For quilting I usually stick to light grey or light beige and use a matching bobbin unless I feel something else would be a better match for what I am sewing at the time.
Rasant is made by "Ackermann-Goggingen RG". Don't know if this is of help to anyone. I am in Brisbane Australia.
lol - Gleniveve