A visible hue-lightness-saturation method, mobile selection habits, Color Lab practice task, formula limitation, stuck-state help, and FAQ.
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Identify the broad hue family, compare lightness, then adjust saturation. On mobile, make one deliberate change at a time or type a six-digit hex value. Practice the target and guess in Color Lab; CIEDE2000 is independent practice because the game formula is unknown.
Character Color Race color picker method: use those three checks for a closer color guess, then open Color Lab to compare the pair.
This hue-lightness-saturation comparison method includes mobile practice tips, an explicit unknown game formula, and a Color Lab entry.