Note: in the above examples I was able to refer to a color being in the Infrared or Ultra Violet region of the electromagnetic continuum. Spectrals 0 through 10 of the Visual Spectrum fall in what may be considered as the Infrared portion of the Visual Spectrum, while spectrals 12 through 21 may be considered as the Ultra Violet portion of the Visual Spectrum. Now however, we are able to name the colors in these regions by their properties.

Blueness only belongs to the fundamental wavelength of the color Blue and all its harmonics. The only antennas capable of radiating Blue frequencies without a bad SWR are those that posses Blueness, ie: have a Blue wavelength or a wavelength that is a harmonic of Blue. All the Blue frequencies can use the same Blue antenna without generating a bad SWR. Likewise, Orange-ness only belongs to the fundamental frequency of the color Orange and its harmonics. All Orange frequencies can use Orange antennas without generating a bad SWR. However, Blue frequencies generate a very bad SWR when used with Orange antennas, and Orange frequencies are no better when used with Blue antennas. Thus Redness, Orange-ness, Yellowness, Greenness, Cyan-ness, Blueness, Violet-ness, and Magenta-ness, are all very real properties of their respective colors.

In other words, the invisible colors are not just figments of my fertile imagination. They are real, and posses very real properties that can be demonstrated. SWR, by the way, stands for Standing Wave Ratio. This ratio states the efficiency of radio antenna systems, and is a measure of reflected power to radiated power. an SWR of 1:1 is ideal. In CB radio, an SWR of 2.0:1 is not objectionable, but an SWR of 2.5:1 would indicate all is not well. An SWR of 1.2:1 is attainable with a lot of work, and an SWR of 1.5:1 is good.

Of course Radio antennas don't come any shorter than 1 millimeter where Microwaves meet Infrared light, but Radio waves and light waves are part of the same electromagnetic continuum and behave the same way.