A dual color matching feedback control method, system and processor-readable medium for hiding an infrared marking in a wide range of customer selectable colors. The approach includes an inline spectrophotometer sensor to measure at least two color mixtures and a matching color feedback control unit adjusts the two mixtures to match each other in color appearance. A customized color can be selected from a smaller gamut of darker color by a customer and a sufficient difference in a black toner (k toner) between the two color mixtures can be maintained to provide sufficient contrast for the infrared detection. An initial match can be provided by incorporating a color model that is similar to a predicted color mixture. The two colors can then be rendered and adjusted for better match prior to rendering the hidden mark. Such an approach adjusts an amount of other toners so that the color difference between the hidden mark colorant and a surrounding colorant is minimized and a presence of the hidden mark is less detectable to the observer under a standard condition.