Women can see more shades of red than men. The gene that allows us to see the color red is on the X chromosome, of which men only have 1. Because women have 2, they can see crimson, maroon, cardinal, ruby, and scarlet, but men may only see light red and dark red. Source
This explains that argument my parents got into about this bag that my dad insisted was red and my mom was like hells to the no, it’s freaking maroon!
this explains everything
THATS SO COOL SO IN THAT PIC DO YOU ONLY SEE TWO COLORS???
XYs will see around 8, XXs will see closer to 16
Also depends on your personal eye situation and color perception.