Wikipedia offers a decent primer on this.  Your yellow should look like the generally perceived yellow, and your blue should look pretty much like most people's blue.  Depending on your condition, your red is what most would call olive, either dark or medium, your orange and green are both lighter olive, and your purple is a different shade of blue.

So, given that last, this approach would be a lot easier for you.  Rest assured, though, that "midrange purple" chart is hard for even people with all three sets of cones pigments to perceive.