Coloring forgery prevention structure and coloring forgery prevention medium

A forgery prevention structure comprising:

• a relief forming layer, a first reflection layer, a functional thin film layer, a second reflection layer and a protection layer in this order, wherein
• the relief forming layer has, on one side, a relief structure comprising a first relief and a second relief, each of the first relief and the second relief performing an effect of diffracting, scattering, absorbing, or polarizing/separating a wavelength range of at least a part of visible light,
• each of the first and second reliefs has an uneven surface, a surface area of the uneven surface of the first relief being smaller than a surface area of the uneven surface of the second relief,
• the first reflection layer and the functional thin film layer each are provided along a whole of the uneven surfaces of the first and second reliefs and each has uneven surfaces corresponding respectively to the uneven surfaces of the first and second reliefs, and
• the second reflection layer and the protection layer each cover only a surface of the functional thin film layer of the first relief and each has an uneven surface corresponding to the uneven surface of the first relief.