Blue tablet: The blue pill will help one to survive nutritionally for approximately in the event of an emergency.
Cassia's mom, Molly's Match Banquet dress was blue as well.
The rivers in the Outer Provinces, such as Sisyphus River, are blue too, but they qualify more as a Water/River symbol specifically.
Blue is also the color of Ky and the other sanitation workers' uniforms.
It is also the color of the sky that Cassia and Grandfather stared into and contemplated.
Blue is a symbol that is usually highly positive. It represents truth, religious or spiritual feeling, security, and spiritual purity.
Rivers represent death and rebirth (baptism), the flowing of time into eternity, the transitional phrase of the life cycle, and incarnations of deities.
With our symbols, I think the main representations would mostly be truth because of Ky's uniform and the rivers, security because of Molly's dress, and spiritual feeling and purity because of the sky.
