A liquid hair dye composition comprising components (A) and (B), whereinthe content (X) of the component (A) in the composition is 1.5 mass% or more and 6.5 mass% or less,the content (Y) of the component (B) in the composition is 9 mass% or more and 98.5 mass% or less, andthe composition satisfies the following equation (1): Y≥X−