There is some creme-white combination in the kitchen as well. We have white roll up blinds on the side windows, olive green wall color and creme sofas. Will white blinds look too strange or add too much contrast or will that contrast look good? The bottom of our wall also has a white (rim?) to it.
Cream and white can look a bit odd, but why not try linking them, by adding some cushions, wth cream, white and a favoured colour combination, say, stripes, or patchwork etc. This will link the two shades, and also add a zinger colour, which it would need. Chocolate and tans wth maybe a lime, or red or something like that would look interesting.....
I think white and cream would look very good together. But you should get some green pillows for your couches so you can pull in the wall color.
I wouldn't use blinds...especially if you have kids or pets. They get destroyed, and they are a strangulation hazard for young children. I would go with cream or brown drapes instead. White I don't think would look good with the cream.
Cream Sofa and White blind? Looks ok but very bland. Why don't you add some bold color ? Get some Wood Blinds that are an honey pecan color.