Purple is not a real color, it doesn't exist

Tell that to his shirt

HOW CAN YOU SAY THAT. OH MY GOD THAT SO JUDGEMENTAL. PURPLE IS REAL. PURPLE IS MORE REAL THAN THE OTHER COLORS. IF A COLOR WANTS TO BE PURPLE IT CAN! GOD YOU JUDGEMENTAL FUCK

.... But I still like purple...

Facepalm. There are two kinds of purple. The one that's a superposition of red and blue, and the one that's actual 400ish nanometer light at the opposite of red in a rainbow. Our eyes cannot see the difference, but many cameras can. If a camera reproduces a purple correctly then that purple is a red+blue mix, the cam picks up both components easily. But often, something that we see purple looks blue on photos. That's because it's a true purple that's too high in frequency, the blue sensor picks it up but not the red one.

First Pluto, now purple. What next science? What are you going to take from me next?