There is no commonly accepted color for loneliness. On an episode of The Big Bang Theory, Raj and Sheldon decide that the color orange ought to represent loneliness. They suspect that, because nothing rhymes with orange, the color orange seems lonely.
Eremophobia- Fear of being oneself or of lonliness.
Blue represents trustworthy
red
brown
The cast of Ritual of Lonliness - 2006 includes: Rozita Ramezannejad
Red and Gold
Red
lonliness
The cast of The Lonliness Trilogy - 2008 includes: Chloe Ginsburg Mihran Konanyan
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blue and white
Blue