Is The Lightest Possible Skin Color Represented By All Recessive Alleles (aabbdd)?

In hair colour, the genes which control the distribution of the three colours; red, blond and blue are quite separate from the genes which control the intensity of that colour.

Both eye colour and skin colour are controlled by the distribution and intensity of melatonin within their tissues. Fair skinned people have less melatonin laid down in their skin, but it often exists in small patches (freckles) in such people. Is it conceivable that a very fair skinned person who has one gene that said next to no melatonin would be laid down in their skin could also have a gene which said that what melatonin they had would be laid down in a great degree of intensity. Is it possible that such a fair-skinned woman, married to an intermediate skin tone man who had a gene for even distribution of melatonin within his skin, but with a gene for a lower level of intensity than his partner would produce children from much darker than her husband to as light as herself?

I know such a pairing would be rare, but there are very infrequent proven cases of twins being produced where one appears to be white and the other black.

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