Provided is a color-changing liquid composition that can be applied to a substrate composed of a 4-methyl-1-pentenene-based polymer, can form a color-changing layer that changes color by heat and light, has excellent adhesion to the substrate, and has good follow-up properties to deformation. And to provide a color-changing laminate which maintains a function of uniformly changing color of the entire color-changing layer without peeling or breaking the color-changing layer even if the shape is deformed. Wherein the temperature indicating the maximum value of the loss tangent determined by dynamic viscoelasticity measurement under conditions of a temperature rise rate of 4 degrees sensitivity/min, a frequency of 1.59 Hz, and a strain amount of 0.1 perent is at least one in the range of 10 100 degrees sensitivity graph/min, Wherein the maximum value of the loss tangent is 0.5 and 3.5, the discoloration liquid composition comprising a discoloration material, at least a...

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