Just gave my LVC '47 a second wash, maybe nine months in. THey weren't looking too great after their first wash, for which I used Dr Bonners; a full on wash in regular non-bio did the tricks, though.
Photobucket has washed these out a little, the legs etc are a very dark blue.
And here are my 55, which I have swtiched to for a change. One wash, six months in:
Lastly, sizing comparison. 47, on the left, are a 34 waist; the 55 is a 32. Despite this, the 55 are bigger. Again, in the flesh the jeans are darker, the 55 fabric in partiuclar is a dark, inky blue.