1. A method of displaying a desired color value on a prescribed pixel of an optical see-through display through which a background is visible, in which the optical see-through display is operatively connected to a controlling computer and the optical see-through display defines a display profile of prescribed color values that the optical see-through display is capable of rendering, the method comprising: executing programming instructions on the controlling computer to: (i) capture background image data relating to said background and identify within the background image data a background color value associated with the prescribed pixel; (ii) add said background color value associated with the prescribed pixel to the prescribed color values of the display profile so as to calculate a perceived color profile of predicted color values which are representative of colors perceived by an observer when the prescribed color values are observed on the optical see-through display over a background having the background color value; (iii) comparing the desired color value to the predicted color values of the perceived color profile to determine a selected color value among the predicted color values which most closely numerically matches the desired color value; and (iv) display the selected color value on the prescribed pixel of the optical see-through display whereby the observer viewing the background through the prescribed pixel of the optical see-through display substantially perceives the desired color value.