Why does me Sapphire Blue Carpet Phlox look pink?

These links indicate the plant Sapphire Blue Carpet Phlox does vary in color, and will thrive in well drained, sandy soils, with pH ranging from acidic 5.5 to slightly alkaline 7.7.

2 possibilities:

1) They mislabeled it and it's not the right sub species.

2) It's a hybrid phlox and it has done what they sometimes do; they revert back to the original more-dominant DNA for color, or the seeds they sowed were pollenated with a pink dominant pollen which over-wrote the blue gene they were hoping for. Meaning it could be the right plant, it just got a surprise daddy. Next, on Jerry Springer garden edition... ;)

Some flowers turn color based on the type of soil. Hydrangia, for instance. I simply can't remember which kind of soil makes them pink and which makes them blue. (One likes acidic soil. That's all I remember. Sorry, no hydrangia or Phlox right now. lol) If no one else gives you better than that, then look it up to find out what kind of soil it needs.

In my opinion i'd go for white sapphire, primarily one with only a trace of blue. But that's me I consider red is extra unusual but blue is more basic. Blue sapphires have been utilized in engagement rings for hundreds of thousands of years. I think blue would be nice. Whichever colour you get, go for the severe. Either darkish or mild, don't get the basic middle blue or core purple. The dark ones and the sunshine ones are prettiest and more detailed