Color matching for silicone is relatively easy. The pigment used in silicone is universal across all the grades of liquid silicone rubber that many manufacturers can run in-house. At Extreme Molding we can easily request a pigment sample of any pantone color and use it in any silicone for most hardnesses — from 10 durometer to 80 durometer (these are units of measure of hardness in silicone). The color is added to clear silicone, so options are endless too– including translucent and glitter.
Color matching for plastic can be slightly more complicated, which is where a good manufacturer can shine if they have established the right material for your product. The same pigment cannot be used for plastic and silicone, and the same pigment can not be used across all different plastics (which is where the complexity lies). The base resin of your product should be used in the process of manufacturing the pigment for your product therefore if you match a pigment to one material, and then switch to an entirely different material family, there is a high chance the pigment will cause problems in the process and will need to be re-matched.
In terms of color there are many options you can explore: