When emulating single, uniformly colored surfaces the most common aim is for the emulation to look as similar to the original as is possible given the constraints of how it is generated. The work presented here reports results of a psychometric experiment in which observers made choices from among the colors on the surface of a reproduction gamut, given original colors outside it. The resulting choices were found to follow trends identified in previous studies on self-luminous displays whereby the visually most similar colors preserved about twice as much lightness and hue as chroma. Such a trade-off among color appearance attributes can therefore be applied irrespective of the media between which colors are to be mapped.