Holy shit HOW do you not know magenta is a color like pink or purple lmao, the dog is named Magenta because it is the color magenta, kinda like how the only other fuckin dog in the show is named BLUE cuz it's FUCKIN BLUE.

A magenta colored flower isn't out of the cards when you Google the word of a pinkish color.

Your fists don't go instantly blood red when you punch someone, unless you're doing something very wrong, there are various shades of pink (e.g.s hot pink and MAGENTA)

Either smoke a joint and calm the fuck down and try to come to terms with the fact that you're ignorant instead of getting angry, or go back to first grade and learn colors again.