Biedermeier is strongly light-biased - shadow is suggested rather than declared. The palette orchestrates warmth above all else - reds, ambers, and siennas take the lead. The absence of saturated colour is itself an expressive choice: this is a palette of restraint and atmosphere. #251E31 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.3%). A value spread of 69 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light.