Brady may be right in that it could be faster to get a true color match by going to that page. I've played around with MAS epoxy for years, and can give you a few hints if that's how you wind up going with this.
Most epoxies will let you add/blend just about any colorant once you have thoroughly mixed the resin and hardener . Since the MAS stuff is pretty clear you don't have to factor in the amber tints some others show.
You could use the old favorite of sawdust/epoxy, but when you sand it flush to your repair it may still need some "help"in color matching after it dries.
A lot of us have mixed in paints and stains to get a colored solid surface , when we do parts of signs such as raised letters as well. Again the key here to be sure that your glop is totally stirred before you add the color, because if you take a "shortcut"and pour it all in the jar at the same time, you will usually get a glob of colored Vaseline that NEVER cures because the resin/hardener couldn't cross link with one another because they were diluted by the color before they could create the bond that turns the two into epoxy...
You CAN mix up a very small batch and just see what you get if there's any room for a "test" swatch on the doors too.
I've had bottles of MAS on the shelf for a few years, and it was still usable when I needed it. If you store it in a cool area it may crystallize in the bottle, but soaking the bottle in a small tub of hot water will bring the resin back to liquid form again.
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