I was trying to find a right ink for my custom spot color. I saw this very saturated blue ink in one printing supply shop the other day. And the shopkeeper told me that the code for this blue was 453. Today I saw the same ink in a local printing company and the supervisor also said that the code was 453 for that ink and the ink was from Pantone matching system. However, when I tried to look up that color on my computer, I couldn't find that color on any of the Pantone color book from Adobe CS6. I think that they probably lied to me that the code 453 was from Pantone system. I wouldn't argue that the ink code was actually 453. But I just don't believe this code was going by Pantone. It can be some type of Chinese color matching system or something else. Does anyone know of this highly saturated pure blue ink? And what kind of color matching system it is going by?