What's the meaning behind the red and yellow colors in Undertale?
Summary
Q.What's the meaning behind the red and yellow colors in Undertale?
A.Red is the default color of the human SOUL in Undertale and its exact canonical meaning isn’t defined in-game; yellow is canonically tied to Justice. The Ball Game in Snowdin reveals trait associations for the other colors, while red remains unnamed.
More info
Red is the default color of the human SOUL in battle and is described as the true mode for Frisk (and Chara), but the game does not assign a specific, named trait to the red SOUL in canon. In other words, red acts as the baseline player’s soul, and its exact meaning is intentionally left open to interpretation. By contrast, yellow is explicitly linked to the Yellow Human and to Justice (with in-game cues tying yellow to sharp shooting, accuracy, and a sense of right or law) in the Ball Game mechanic that teams each hue with a trait. For a fuller picture of how the colors map to traits, see the Ball Game-derived color table in the Eight Humans entry and the SOUL Modes explanation. SOUL Modes Eight Humans
In practice, the Ball Game assigns named traits to six other colors (cyan, orange, blue, purple, green, and yellow), while red remains without a canon-specified label. This is echoed in community references that note the red soul’s trait is not officially defined by the game, with the red color serving as the baseline for Frisk/Chara’s souls. See the in-game mappings and discussion in the Undertale wiki entries for a canonical overview of how the colors function in combat and lore. Eight Humans SOUL Modes
