I can't believe the number of posters saying the OP should accept it because they like it! Why should someone put up with something different to what they wanted? The mind boggles. Perhaps we should go back to not having a choice at all - how about Henry Ford "you can have any colour as long as it's black"? The OP will have spent time and energy choosing her colour/style of flooring from samples, etc., What was the point if the flooring company is going to fit what the hell they feel like fitting (and probably ripping off the OP by supplying a cheaper/inferior product as well as the colour being wrong)?
We had a similar situation with a carpet. We had a carpet fitted in room A, and liked it so much, we went back and ordered the same carpet for room B. On the second occasion, it was the owner himself (it was an independent furniture/carpet showroom), and he tried to persuade us to buy a different carpet because he had a roll end in stock - we compared the sample we wanted against the roll end and, yes, it looked pretty similar, but not quite the same, so we told him, no, we wanted the actual carpet as per the sample. A bit of sighing and eye rolling, but he relented. Come fitting day, their fitters came and laid it, but it was blatantly obvious it wasn't the same carpet as room A, because room A and B were joined via a wide arch (front room, back room), and the colour, pattern, even depth were clearly different, although you wouldn't have noticed had they been in truly separate rooms. The crafty sod had delivered the fitted the roll end rather than buying the one we wanted and charged us full price! Obviously we didn't let him get away with it, refused to pay, made him come out to look, but he insisted it was "shading" gave us a load of bull about different roles of the same carpet being slightly different etc. We didn't accept a word of it. So he went away to try to "negotiate" a replacement with the supplier, still blaming the supplier, etc. We went back to his showroom, and the roll end was gone! He eventually relented and said the supplier had agreed to replace it, so the fitters came back, took it up, put the new one down, and it was clearly absolutely identical to the original one, which was identical to the sample.
You really can't let them get away with it. Too many people do, and that's why these crooks continue to rip people off!