Yellow is really red and green. But it doesn't look like red or green to me.. it looks like yellow. I wonder if I could train myself to see the red and green in it. I am better able to see the green and blue in turquoise, and yellow seems categorically similar to turquoise.
I suspect qualia is associated with raw sensory inputs, like red and green, but also with higher level patterns, like yellow or even the recognition of a person — there is a qualia of recognizing my mom.
I don't think all recognition involves qualia. For instance, I can read the number 5276498, and each digit has a qualia of being the digit that it is, but the number as a whole is just some large number. To remember it, I would need to sort of repeat the digits in my head.