First Mate is a true creamy navy blue, that in any light always keeps it's true color. I was testing out some polishes for Fall the other day, and it just so happened to be when the sun was shining through my window. I was able to capture in a couple of photos how the polish looks both in the sun and with a shadow cast on it. As you can see, the color stays pretty much the same - always navy, always a true blue.
And here is the color on all of my nails. I adore this color! Rich and deep for the season, but not as stark as a true black.