Nouns, Consciousness, and perception
Color is not an illusion, however. If a light source radiates every wavelength in the visual spectrum upon an object and only certain wavelengths are reflected, while others are absorbed, that is really happening. One is actually detecting the wavelengths being reflected, which may be distinctly different from the combinations of wavelengths reflected by another object, or more specifically, the surface chemical composition of the object.
Movement of air molecules is not an illusion. They are actually moving and moving in multiple ways, multiple frequencies. Our brains are not inventing the pattern of frequencies, but rather, perceiving the pattern of frequencies. The air is actually moving in the way perceived.
I would say that our senses provide us with an excellent representation of the macroscopic world around us when we put things to close examination. Obviously, in situations where there is incomplete information one cannot create a completely accurate representation of all that is perceived, say very low light conditions, or an object is at sufficient distance that one is unable to perceive enough detail to distinguish between similarly shaped objects.
In addition, we are now at a stage of development to where we can create tools that expand our ability to perceive the world beyond the limits of our biological senses. And with this we have only corroborated that the macroscopic world is as we have perceived it for millennia.