[Matrixbeast]

You know one of the commonly considered coolest Sentai characters, Black Condor/Gai?
The literal only reason he joined the Jetmen was to get into Kaori's pants.
Everything he did was for a women, you know.

I know it's probably not intentional on your part, but you are kind of sounding misogynistic.

Purple isn't associated with femininity. It's a gender neutral color that you want to associate with women because it's visually similar to pink.
Hell, green isn't necessarily a masculine color. It's associated with nature and can just be as easily worn by a woman.
Meanwhile, black and white are accent colors with no sway in either direction, while blue has always been in the middle, with lighter shades being associated with femininity and deeper shades with masculinity, but it's also rather gender neutral.