This is not a conclusion but the pondering on why there seems to be a lot of symbolic imagery that juxtaposes the colors blue and red.
Some examples are as follows:
The Korean flag features a strict yin and yang symbol with one half blue and the other red (strict because it does not contain the traditional dots)—also, may flags, such as that of the USA, include blue and red.
The Pepsi soda log is virtually the same as the Korean flag but has a white stripe between the blue and red.
Within the Halo mythos (video games, movies, etc.) there is a subseries titled “Blue vs. Red.”
The multiple reality based movie Coherence features to opposing groups of people who are represented as either blue or red (with other colors coming into play towards the end of the movie).
Within the Matrix movie and the earlier (and original) Total Recall movie there is a blue vs. red dichotomy in the form of pills; one to be taken to remain in delusion and one to escape the delusion and re-enter the real world (see attached video).
Lights atop police cars are blue and red.
There are also some blue and red based comic book superhero costumes such as Spiderman, Superman, Captain America, et al.
Colors and colors and are thus merely interpreted by us when we “give them meaning.” For example, some may say that blue is cold and red is hot. Blue may be comforting and red may be danger. And, of course, colors have been interpreted via the worldview-philosophies or occult magick, psychologists, interior designers, etc.
Also, while there may be flags and costumes that are or include blue and red there are many that do not.
Perhaps we can look to the Bible for, at least, a hint as to why there is such symbolic dichotomy.
Revelation 17 states:
…the great whore that sitteth upon many waters: With whom the kings of the earth have committed fornication, and the inhabitants of the earth have been made drunk with the wine of her fornication…a woman sit upon a scarlet coloured beast, full of names of blasphemy…And the woman was arrayed in purple and scarlet colour, and decked with gold and precious stones and pearls, having a golden cup in her hand full of abominations and filthiness of her fornication: And upon her forehead was a name written, MYSTERY, BABYLON THE GREAT, THE MOTHER OF HARLOTS AND ABOMINATIONS OF THE EARTH.
If the scarlet/red is taken as the dominant color (which it is as the woman is clothed with it, in part, and the beast is that color) we then turn to the book of Exodus we find that various pieces of ritual paraphernalia were to be of “blue, and purple, and scarlet” (see Exodus 25:4; 26:1, 4, 31, 36; 27:16; 28:5-6, 8, 15, 28, 31, 33, 37; 35:6, 23, 25, 35; 36:8, 11, 35, 37; 38:18, 23; 39:1-3, 5, 8; 39:21-22, 24, 29).
Clearly, for some reason, the symbolic woman is missing blue as YHVH’s priesthood’s ritual paraphernalia includes blue, and purple, and scarlet but she is arrayed only in purple and scarlet, and the beast is solely scarlet.
Thus, the dark side, as it were, seems to be missing blue and thus the blue vs. red (or, scarlet) dichotomy.
This is a mere gedankenexperiment and I would love to receive any helpful input.
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