Betty Hill's Aliens and the Color Yellow

[pickinduck]

In Betty Hill's encounter with aliens she conveyed that they didn't know the color yellow. I was watching a video a few days ago about color and from what it was saying all of us earthing don't necessarily see all of the same colors. It was linking vocabulary with colors and saying if the color was not in the vocabulary the people do not see it. I'm wondering if now sense their encounter with Betty Hill if the alien can see yellow now?

[sherlew99]

Possibly, or it could be the that the aliens see in a different color spectrum, too.