A liquid hair dye composition, comprising components (A) and (B), wherein the content (X) of component (A) in the composition is 1.5 mass% or more and 9.3 mass% or less, the content (Y) of component (B) in the composition is 9 mass% or more and 98.5 mass% or less, and the liquid hair dye composition satisfies the following formula (1) (with the proviso that a liquid hair dye composition which has the content of diol of 50 mass% or more and the content of water of 2 mass% or less is excluded), Y ≥ 10.875X - 10.875 (1), (A) an azo dye of the formula (A-l), and (B) a monoalcohol and/or a diol other than alkanolamines.一種液狀染毛劑組合物，其係含有成分(A)及(B)者， 該組合物中之成分(A)之含量(X)為1.5質量%以上且9.3質量%以下， 該組合物中之成分(B)之含量(Y)為9質量%以上且98.5質量%以下， 且滿足下述式(1)(其中，液狀染毛劑組合物中之二醇含量為50質量%以上且水分量為2質量%以下者除外)。 Y≧10.875X－10.875 (1) (A)式(Α-1)所表示之偶氮染料 (B)除烷醇胺以外之單醇及/或二醇
