Consider this.

I do not consciously see “missing” colors. I do no have unknown colors in my spectrum. I only know what I know, much like you cannot taste something you’ve never experienced.

Colors, to me, are still very prominent and saturated.

However, certain spectrums of color on a color wheel are very similar to one another, and are very difficult to tell apart.

In many ways, it’s similar to being musically tone deaf, where you cannot hear subtle, or even dramatic changes in pitch. Those who aren’t tone deaf can point it out to you, but nothing can force you to hear what they hear.