If you really want to go deeper with the colors subject, as well as the subjective nature of color perception variations, read up on a genetic trait called Chromographic synesthesia; my cousin and I both have this type of synesthesia, and basically we "see" our letters, numbers, days of the week, etc. as specific colors. It's not a New Age aura kind of thing, but something that has been documented by several neurology journals.

I don't physically see colors, it's kind of like being in a dark room with a piece of hot pumpkin pie. You can smell the pie, and you get that mental image of a pie in your head? Same thing when I know it's Wednesday, it's a yellow day, or that August is a yellow-green color.

It's not the same for each synesthete- my cousin and I argue all of the time that V is red, no, it's purple, and that Friday isn't orange, it's green! The look on my mom and aunt's faces are priceless when they hear us argue about these kind of things...